"Rate Of Photosynthesis And Light Intensity Discussion Lab Report" Essays and Research Papers

Rate Of Photosynthesis And Light Intensity Discussion Lab Report

weebly.com/effect-of-light-intensity.html‎ Investigating the Effect of Light Intensity on the Rate of Photosynthesis. Light intensity is one ... 4. Darken the laboratory by turning off as many lights as possible. Rate Of Photosynthesis And Light Intensity Discussion Lab Report ... www.studymode.com/.../rate-of-photosynthesis-and-light-intensity-discu...‎ Free Essays on Rate Of Photosynthesis And Light Intensity Discussion Lab Report for students. Use our...

Affect, Carbon dioxide, Effect 434  Words | 3  Pages

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The Effect of Light Intensity on Photosynthesis

The Effects of Light Intensity on the Rate of Photosynthesis Aim: To investigate the effects of light intensity on photosynthesis. Background: Photosynthesis is a process that plants undergo to produce glucose. The plant then uses the glucose to produce energy which the plant needs to sustain life. The chemical formula for photosynthesis is: Sunlight 6CO2 +6H2O → C6H12O6 + 6O2 Chlorophyll The plant requires light, carbon dioxide and...

Chemistry, Light, Measurement 1608  Words | 6  Pages

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Photosynthesis lab report

Abstract Photosynthesis is a food making process for algae and plants. The photosynthesis process rate varies from different wavelengths and intensities of light. This lab will evaluate the optimal wavelengths and degrees of intensity during photosynthesis when chloroplast is exposed to light. The mixtures of DCPIP with water, PO4 buffer, and chloroplast will be prepared in a number of cuvettes. The cuvettes were tested individually at different wavelengths and intensities to find the optimal rate of photosynthesis...

Adenosine triphosphate, Calvin cycle, Chloroplast 1783  Words | 6  Pages

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Photosynthesis Rate

Photosynthesis Lab Before you begin, save this Lab Report Template on your computer as LastNameAPBIOPhoto Read all the instructions below BEFORE you start! 1. Please go to the following website: http://www.biocourse.com/mhhe/bcc/domains/biolabs.xsp 2. Scroll down and click on the link to Photosynthesis. It is the 6th one down on the left. 3. Read the instructions for entering the virtual lab. There is background information in the online lab manual that will be helpful in interpreting...

Carbon dioxide, Color, Leaf 926  Words | 6  Pages

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Photosynthesis and Yellow Light

Photosynthesis Lab Report Introduction The lights are essential for photosynthesis and it plays a major role. All the food we eat and all the fossil fuel we use is a product of photosynthesis, which is the process that converts energy in sunlight to chemical forms of energy that can be used by biological systems. Photosynthesis is carried out by many different organisms but usually by plants and algae. All these organisms convert CO2 (carbon dioxide)...

Chlorophyll, Color, Green 899  Words | 4  Pages

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Photosynthesis and Cellular Respiration lab report 1

 Photosynthesis and Cellular Respiration Nina R. McCray May 5, 2015 Biology Lab (SCIE207-1502-A-07) LaDonna McCowan-Ferrier Photosynthesis and Cellular Respiration Lab Report Introduction This is an investigation of the effect of the intensity of light (photosynthesis) have on the rate of cellular respiration (measured as the number of oxygen bubbles). We will determine whether or not it is possible to examine the relationship between photosynthesis and cellular respiration...

Carbon dioxide, Cellular respiration, Incandescent light bulb 358  Words | 4  Pages

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Biology - How Light Intensity Affects the Rate of Photosynthesis

Biology Coursework ¡V Does The Light Intensity Affect the Rate of Photosynthesis The Investigation In this experiment I will investigate the affect in which the light intensity will have on a plants photosynthesis process. This will be done by measuring the bubbles of oxygen and having a bulb for the light intensity variable. Variables The input variable which will be used in this investigation will be the light intensity (this will be a 100Watt bulb being moved closer and further away...

Carbon dioxide, Chemistry, Chloroplast 2141  Words | 7  Pages

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Investigation on how light intensity affects the rate of Photosynthesis.

Introduction: Photosynthesis is the process by which green plants use the light energy to convert carbon dioxide and water into simple sugar called glucose, which provides a basic energy source for the plant. Photosynthesis occurs in leaves that contain specialized cell structures called chloroplasts. Chloroplasts contain molecules of a green pigment called chlorophyll, consisting largely of carbon and hydrogen. It gives green color and absorbs the necessary light for photosynthesis. Chloroplasts...

Carbon dioxide, Chlorophyll, Chloroplast 640  Words | 4  Pages

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Photosynthesis Lab Report

------------------------------------------------- Biology 104 ------------------------------------------------- Lab Section: 14 ------------------------------------------------- TA: Victoria Prescott ------------------------------------------------- Date: 9/13/2012 ------------------------------------------------- ------------------------------------------------- The Effects of Light Intensity and NaHCO3 concentrations on the Rate of Photosynthesis ------------------------------------------------- ------------------------------------------------- ...

Carbon dioxide, Chloroplast, Eukaryote 1342  Words | 5  Pages

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investigting the effect of light intensity on photosynthesis

Biology lab: measuring the effect of light intensity on plant growth Aim: Investigate the effect of light intensity on plant growth Hypothesis: Light intensity will have an effect on plant growth. With an increase in light intensity there will be plant growth at a faster rate in comparison to when the light intensity is low where plant growth is limited and will take place slowly. When there’s too much light intensity, the light intensity will no longer become a limiting factor. A limiting...

Acid, Carbon dioxide, Carbonate 797  Words | 4  Pages

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Photosynthesis: Light and Plant

ESS Internal Assessment: Lab Report Aim: The aim is to measure the rate of photosynthesis of an aquatic plant (Cabomba species) at different light intensities. Hypothesis: If the distance between the lamp and the plant increases the rate of photosynthesis decreases because the plant requires light for photosynthesis to occur. Variables: Independent: The independent variable for this experiment is light intensity. In each trial the distance between the plant and the lamp will be increased, from...

Light, Measurement, Oxygen 727  Words | 3  Pages

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Lab Report-Photosynthesis

Introduction Photosynthesis is a redox reaction which requires carbon dioxide, water and light to produce water and a 6-carbon sugar. The process of photosynthesis consists of two parts, a light reaction and a light-independent reaction. The method of changing light energy into chemical energy for the formation of NADPH and ATP is done through the light reactions. Light independent reactions use carbon dioxide and the products of light reactions (ATP and NADPH) to form compounds such as glucose...

Calvin cycle, Cellular respiration, Chloroplast 1485  Words | 5  Pages

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IB Bio lab report on photosynthesis

The effect of different coloured lights on the rate of Photosynthesis Objective: To find out which colour of light provides the best consequences for the production of oxygen/ the rate of photosynthesis Background: In photosynthesis, there are two main parts, including light dependent and light-independent reactions. Plants use the energy from light for producing sugar, which is being converted into ATP by cellular respiration. They also are the only organisms that produce oxygen along with glucose...

Chlorophyll, Color, Light 1503  Words | 7  Pages

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How Light Intensity Affect Photosynthesis

How does light intensity and carbon dioxide levels affect photosynthesis rate Phaladi Phaladi 201102379 Department Of Mathematics And Science Education University Of Botswana Plants, through the use of chlorophyll (green pigment in plants) that traps light can generate ‘food’ by combining carbon dioxide in the air and water. As with many chemical process energy is need to make and break molecules during the chemical process. The greater the light levels the more energy is available to carry...

Carbon dioxide, Carbonate, Light 853  Words | 3  Pages

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Lab Report on Photosynthesis

Lab Report: Understanding Photosynthesis Gen Biology Lab Abstract: This lab was called photosynthesis: understanding photosynthesis. It is a highly complex process that needs to be broken down in many steps to understand how it works. This lab covers the big components in photosynthesis including carbon dioxide intake, light consumption, and varying pigmentation. Introduction: Photosynthesis is a huge concept to learn and understand in the field of biology. Plants have their own special...

Carbon dioxide, Chlorophyll, Color 1236  Words | 4  Pages

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Light and Photosynthesis

Photosynthesis Lab Answer Key Vocabulary: carbon dioxide, chlorophyll, glucose, limiting factor, nanometer, photosynthesis, wavelength Prior Knowledge Questions (Do these BEFORE using the Gizmo.) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] • To survive, what gas do we need to breathe in? Oxygen • Where is this gas produced? In plants Gizmo...

Carbon dioxide, Color, Electromagnetic radiation 1279  Words | 6  Pages

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SBI4U Photosynthesis Lab Gizmo

Photosynthesis Lab Gizmo website: www.explorelearning.com Class code: EFVNHTVRGY Gizmo Warm-up During photosynthesis, plants use the energy of light to produce glucose (C6H12O6) from carbon dioxide (CO2), and water (H2O). Glucose is a simple sugar that plants use for energy and as a building block for larger molecules. A by-product of photosynthesis is oxygen. Plants use some of the oxygen they produce, but most of it is released. In the Photosynthesis Lab Gizmo™, you...

Carbon dioxide, Electromagnetic radiation, Energy 1218  Words | 4  Pages

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Photosynthesis Lab

Alyssa Wright VARIABLE: LIGHT INTENSITY AIM: to investigate the effect of light intensity (lux) on the amount of oxygen produced (number of bubbles) HYPOTHESIS: I predict that the rate of oxygen produced increases, as the light intensity increases, but only to a point. I predict this will happen because the plant will have enough carbon dioxide and water to keep up with the amount of light that there is. When there is less light intensity, photosynthesis will happen...

Carbon dioxide, Fahrenheit, Light 1012  Words | 4  Pages

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Understanding the Scientific Method: Photosynthesis and Cellular Respiration

Phase 1 Lab Report Title: Understanding the Scientific Method: Photosynthesis and Cellular Respiration Instructions: Based on the virtual experiment, you will answer some questions and write a 1-page lab report using the scientific method. When your lab report is complete, submit this document to your instructor in your assignment box. Using what you learned on the lab animation, answer the following questions: Define a hypothesis that is suggested by the data that are collected in the lab. Complete...

Citation, Scientific method, Theory 455  Words | 2  Pages

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Photosynthesis Lab Report

use a process called photosynthesis to covert energy from the sun into energy they can use for their activities. The plant’s chloroplasts, along with water, carbon dioxide, and light are the essential elements required for photosynthesis to take place. The “photo” part of photosynthesis is in reference to the fact that the process requires light. The simplest form of the photosynthesis equation is: H2O + CO2 ----light----> (CH2O)N + O2 As shown in the equation, photosynthesis produces carbohydrates...

Carbon dioxide, Chloroplast, Cyanobacteria 1392  Words | 4  Pages

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An Investigation on the Effects of Light Intensity on Photosynthesis

Plan I plan to investigate how light intensity affects the rate of photosynthesis in pondweed. The rate of photosynthesis will be measured by the number of bubbles given off (considering that oxygen is produced as a waste gas during photosynthesis). The light intensity is measured by the distance between the lamp and pondweed. Fair test: Fix: the amount of pondweed, the amount of water and sodium hydrogen carbonate solution in the test tube, the time allowed for each experiment Change:...

Carbon dioxide, Carbonate, Energy 1906  Words | 7  Pages

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Ensci Lab 2

Relevant to: 2.5.2. Describe photosynthesis in terms of inputs, outputs and energy transformations. Criteria to be assessed: PL, DCP, DEC. Background: Photosynthesis is the reaction carried out by green plants to produce a supply of food. The reactions occur in the chloroplasts and require light energy. 6CO2 + 6H2O C6H12O6 + 6O2 In aquatic plants, the production of oxygen can be used to measure the rate of photosynthesis as the oxygen bubbles can...

Aquatic plant, Aquatic plants, Hydrilla 1638  Words | 12  Pages

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Biology Lab Report on the Effects of Photosynthesis

Abstract For this lab the rate of photosynthesis was analyzed upon plant leaves. A sample of a light exposed and a not-light exposed leave were used to clearly identify the role of sunlight in the process of producing and storing energy. Aim We are trying to find proof, to demonstrate the necessity of light and chlorophyll in the process of photosynthesis. Background Photosynthesis occurs in organisms which contain chlorophyll. It's a process that involves the chloroplasts to synthesize glucose...

Chlorophyll, Iodine, Leaf 1270  Words | 5  Pages

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Lab report over cellular respiration and photosynthesis

 Makenzie Ann Cox October 22, 2014 Biology 1112.317 Lab Report Amounts of Carbon Dioxide/ Oxygen Animals are Producing/ Consuming Introduction Every cell needs a source of energy in order to perform their daily functions. However the process to get this energy is different for plant and animal cells. Plants cells undergo a process called photosynthesis where light energy from the sun is used to convert carbon dioxide and water into glucose and oxygen. For animal cells, the process is...

Adenosine triphosphate, Carbon dioxide, Cellular respiration 803  Words | 5  Pages

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Rate of Photosynthesis Lab Report

Title: Rate of Photosynthesis Introduction: Photosynthesis occurs in plants where the light energy changes to chemical energy. This process occurs in the chloroplast of the plant cell in order to have gas exchange in the organism. Purpose: To measure the effect of light intensity on the rate of photosynthesis in the leaf cells. Hypothesis: The higher the concentration of the sodium bicarbonate solution, the faster the leaf of the plant will rise to the surface of the water in the beaker, the...

Chemistry, Overhead projector, Photosynthesis 538  Words | 2  Pages

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photosynthesis lab report

Photosynthesis Lab Report Purpose: To research the effect of different wavelengths (colors) of light on plant growth during photosynthesis. Background Information: Photosynthesis is the process by which sunlight is captured by chloroplasts within plant cells and turned into energy. This energy is used to help the plant grow roots, leaves, flowers and fruit. Energy is required by living things...

Color, Green, Incandescent light bulb 640  Words | 3  Pages

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The effects of Light Quality on the Rate of Photosynthesis Measure through Floating Spinach Disks

the relationship of different wavelengths of light and the rate of photosynthesis in spinach leafs. The rate of photosynthesis was measured every five min under light colors of white, green, red, blue and yellow under a light intensity of 2000 lux. The rate of photosynthesis was measured by the spinach disk method in which we replaced the air from the disks with sodium bicarbonate using a vacuum. Under photosynthesis, oxygen, a product of photosynthesis, replaced the bicarbonate solution, made the...

Chlorophyll, Chloroplast, Color 2388  Words | 7  Pages

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Photosynthesis Lab

Effect of Different Concentrations of Carbon Dioxide on the Rate of Photosynthesis in Spinach leafs

 Name: Helena H. Jonsdottir Partner: Emily Helena Kraus Date: 26.03’13 Class: IB Biology 1B Instructor: Ms. Kende Research Question: How does the concentration of carbon dioxide affect the rate of photosynthesis in spinach leafs? Introduction: Spinach is a eukaryotic photoautotroph, contains plant cells and appears to be green...

Acid, Adenosine triphosphate, Calvin cycle 1409  Words | 6  Pages

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Rate of Photosynthesis: Limiting Factors

Rate of photosynthesis: limiting factors Limiting factors The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature. In any given situation any one of these may become a limiting factor, in other words the factors that directly affects the rate at which photosynthesis can take place masking the effects of the other factors. Light and rate of photosynthesis At low light intensities, as light intensity increases, the rate of the light-dependent...

Affect, Carbon dioxide, Light 624  Words | 3  Pages

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Photosynthesis Lab

Lab Report #1 Photosynthesis Lab Report: The Effects of Varying Concentrations of CO2 on the rate of Photosynthesis in Spinach Leaves Introduction Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. The purpose of this experiment is to see how different concentrations of carbon...

Carbon dioxide, Carbonate, Chlorophyll 600  Words | 6  Pages

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Bio Lab Report

Biology Laboratory Report MEASURING RATE OF WATER UPTAKE BY A PLANT SHOOT USING A POTOMETER Introduction All plants need salts minerals, water, CO2 and O2. To fulfill their requirements different plants use different ways. Lower plants use diffusion, however higher plants use vascular tissue that is located in the middle of the root and in the vascular bundles in the stem. The transpiration is the important process in the plant. The main reason is that transportation...

Evaporation, Fern, Leaf 1606  Words | 6  Pages

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How Does Light Affect the Rate of Photosynthesis?

Biology Investigation Problem: How does light affect the rate of Photosynthesis? The Plan In my experiment I am going to see how light affects the rate of photosynthesis. To do this experiment I am going to set up the apparatus as shown in figure 1. The apparatus I am going to use are the following: - 1 Tripod 1 300ml Beaker 1 Boiling Tube 1 Clamp Stand 1Clamp 1 Boss 1 Ring Binder 1 Lamp 1 1 Metre Ruler 1 Thermometer 1 Stop Clock To do the experiment I will set up the...

Carbon, Carbon dioxide, Carbonate 1933  Words | 7  Pages

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polarized light lab report

 GLENDA MARIE GARCIA POLARIZED LIGHT LAB REPORT EXPERIMENT # 5 June 27, 2014 PHYS 1417 ABSTRACT Ordinary light such as that from a light bulb is a form of wave motion that consists of electrical and magnetic fields that vibrate at right angles to the direction of travel of a light beam. Light waves that vibrate in a single plane are called polarized light waves. Such waves can be produced by passing light through polarizing filters. The experiment conducted was composed...

Electromagnetic radiation, Light, Optics 1073  Words | 6  Pages

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Lab 7 Bio

Benjamin Kleveland 502 October 26, 2014 Lab 7 Report Lights Distance and Wavelength Effect on Photosynthesis Photosynthesis and cellular respiration are often mistaken as the same thing. Although they are similar in many ways, photosynthesis and cellular respiration are the exact opposite of each other. Not figuratively, but literally the reverse (Photosynthesis). They incorporate the others products while adding some outside energy to create a never ending cycle. This brings us to the photochemical...

Carbon dioxide, Chlorophyll, Electromagnetic radiation 874  Words | 2  Pages

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What Factors Affect the Rate of Photosynthesis in Living Leaves?

What Factors Affect the Rate of Photosynthesis in living leaves? Abstract: In this lab, four different types of leaves were tested to see the rate at which each leaf photosynthesized. This lab demonstrates how plants store light, capture light, and use light as energy for reproduction and growth, by photosynthesis. The control in this experiment was spinach, which was tested before any of the other plants were. The other plants that were tested were English Ivy, C4 Plant, and a multicolored...

Carbon dioxide, Chlorophyll, Fern 1761  Words | 6  Pages

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Effect of light intensity on rate of photosynthesis on elodea plant

LIGHT INTENSITY AND PHOTOSYNTHESIS LAB REPORT GROUP MEMBERS: MARITONI VALENCIA, SANGITA TAMANG, RYUTARO SEIKI AND MAO INTRODUCTION: Light intensity is one of the factors affecting the rate of photosynthesis. Other factors are concentration of carbon dioxide, temperature and to a lesser degree, water. Light intensity directly affects the light-dependent reaction in photosynthesis and indirectly affects the light-independent reaction. Light is a limiting factor when the light intensity is too low...

Carbon dioxide, Elodea, Light 4595  Words | 36  Pages

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Lab Reports

lab reports becca Medina Biology Lab 1107 Lab Notebook The Scientific Method Problem: Will a male or female have a higher heart rate after participating in the physical activity of running up three floors of a building? Both students are involved in sports that require physical activity. Hypothesis: We believe that the male would have a lower heart rate after running up the stairs determining that he is in better shape. Materials/Methods: The two students will both run up the same number...

Carbon dioxide, Cell nucleus, Eukaryote 1091  Words | 4  Pages

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The Effect of Light Quantity on Photosynthesis of Green Land Plants

The effect of light quantity on photosynthesis of green land plants Introduction Photosynthesis is the process of converting light energy into chemical energy (Hoober 1984). Pigments within chloroplasts, primarily chlorophyll, absorb the incoming solar energy which excites their electrons (Hoober 1984). These pigments exist in photosystems in the thylakoid membrane of the chloroplast (Ladiges et al.2010). As the electrons return to ground level, they are captured by the electron acceptor in the...

Adenosine triphosphate, Cellular respiration, Chlorophyll 1752  Words | 5  Pages

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Photosynthesis Lab

Photosynthesis: Experiment Instructions (Lab Report)<="" span="">Note: These experiments were adapted from two different web sites.  Links are provided to them so that you can look at their wonderful pictures and illustrations that make the process more clear.  However, you need to follow the instructions here to do the experiment correctly.MATERIALS NEEDED (Oxygen Production)Lamp Compact Fluorescent Light (curly light bulb) of at least 60W equivalence (13W or better) Fresh Spinach Leaves ...

Compact fluorescent lamp, Filter paper, Fluorescent lamp 1592  Words | 3  Pages

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Lab Report

8: Photosynthesis This exercise is worth a total of 15 points. To receive full credit for Exercise 8, you must submit the following: 1) The typed Exercise 8 report form, complete with all of your data recorded and questions answered. 2) A full scientific report for the Part I experiment that your group conducted. Use the supplemental guide to writing a scientific report to help you produce this report. Part 1: Does light matter? Table 8.1: Group and Class rates for...

Carbon dioxide, Chlorophyll, Leaf 434  Words | 3  Pages

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Determination of Rate of Photosynthesis

Determination of rate of photosynthesis INTRODUCTION Photosynthesis is the major process by which light from the sun is captured by plants, algae and some bacteria to produce energy. It is a process in which light energy is converted into chemical energy which is then stored in sugars. Photosynthesis occurs in two stages, light-dependant reactions and light-independent reactions. In light-dependent reactions the chlorophyll traps light energy which is then used to excite electrons and split water...

Adenosine triphosphate, Calvin cycle, Carbon dioxide 1057  Words | 3  Pages

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Effects of Light Intensity on the Rate of Photosynthesis

out how light intensity can affect the rate of photosynthesis. Hypothesis I think that the further away the light source is the smaller the rate of photosynthesis is. This is because there is a further distance for the light to each the plant in order for it to photosynthesise. Although the closer the light source is, the more photosynthesis, the light source could also kill or damage the Elodea (type of pondweed) because it could become too hot and denature its cells. But because light intensity...

Analytic geometry, Carbon dioxide, Incandescent light bulb 499  Words | 2  Pages

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Photosynthesis Investigation and Light

LIGHT IN PHOTOSYNTHESIS Theory: Leaf discs float normally. When the air spaces are infiltrated with the solution the overall density of the leaf disc increases and the disc sinks. The infiltration solution includes a small amount of sodium bicarbonate. The bicarbonate ions serve as the carbon source for photosynthesis. As photosynthesis proceeds oxygen is released into the interior of the leaf which changes the buoyancy – causing the discs to rise. Since cellular respiration is taking place...

Carbon dioxide, Carbonate, Incandescent light bulb 1867  Words | 7  Pages

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The effect of light intensity on the rate of photosynthesis

How light intensity effects the Rate of photo synthesis. Aim The aim of my experiment is to find out how light intensity affects the rate of photosynthesis. Prediction I predict that as the light intensity increases that the rate of photosynthesis will increase in proportion, so for example if you increase the light intensity from 10cm away to 20 cm away form a stationary plant. There for the rate of photosynthesis will decrease proportionally with the distance of the light from the plant (in...

Carbon dioxide, Chloroplast, Light 1629  Words | 8  Pages

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light microscope lab report

September 9, 2013 Learning parts and proper use of microscope, and the interception of images viewed through a light microscope Abstract: A compound light microscope uses two sets of lenses, ocular and objective, and employs light as its source of illumination. Through careful observation, we identified the various parts of a light microscope we found that the light microscope Ocular lenses which give 10x magnification power, and objective lenses which consist of three objectives: scanning...

Lens, Magnification, Microscope 915  Words | 4  Pages

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Ap Bio Lab Report

Plant Pigments and Photosynthesis Problem: We are going to separate and identify pigments and other molecules from cell extracts through a process called chromatography. We will also test the theory that light and chloroplasts are required for light reactions to occur. Background: Pigments are chemical compounds which reflect only certain wavelengths of visible light. This is what makes them seem colorful. Many things contain pigments including flowers, corals, and even skin. More important than...

Chlorophyll, Chloroplast, Color 1458  Words | 5  Pages

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Lab 5

of the pigment that captures light? Chlorophyll B. Why does the pigment appear green? It absorbs other colors of light such as red and blue, so in a way the green light is reflected out since the pigment does not absorb it. 2. List two variables besides the wavelength (color) of light which might affect the rate of food production in plants. Light intensity and carbon dioxide 3. Why is chlorophyll important for all biological life? It is necessary for photosynthesis which creates food for plants...

Carbon, Carbon dioxide, Chlorophyll 757  Words | 3  Pages

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Photosynthesis Lab

Photosynthesis Lab Data Collection: The absorption of different wavelengths of light by Chlorophyll Wavelength (nm) Absorbance of light by chlorophyll (Arbitrary units) Diluted Calculation New Reading (Arbitrary units) Violet 430 2.35 50% 2.35 x 2 3.20 Blue 470 1.09 - - 1.09 Blue-Green 492 0.38 - - 0.38 Green 520 0.77 - - 0.77 Yellow-Green 550 0.85 - - 0.85 Yellow 580 1.43 - - 1.43 Orange 600 0.65 - - 0.65 Red 700 0.16 - - 0.16 Absorption and reflection of light: Different...

Absorption, Color, Digestion 733  Words | 3  Pages

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Salinity Lab Report

on the lights, you get photosynthesis. If you turn off the lights, you turn off the primary production. Darkness has no effect on respiration. This is because cellular respiration is actually the reverse process of photosynthesis. Oxygen is a necessity of life requirements for basically all living organisms.* In this lab we are testing how different levels of salinity in the water indirectly affects the gross primary productivity in aquatic plants. To measure this you would use the light and dark...

Algae, Carbon cycle, Carbon dioxide 926  Words | 3  Pages

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Photosynthesis Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration, or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis. Temperature, carbon dioxide concentration and light intensity are factors that can limit the rate of photosynthesis. Photosynthesis summary Photosynthesis [photosynthesis: The chemical change...

Carbon dioxide, Cell wall, Cyanobacteria 858  Words | 3  Pages

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Light Reactions and Plant Pigments

The Effect of Light Reactions on Plant Pigmentation Alyssa Martinez AP Biology 4th pd E. Perkins Abstract In this lab, we were to separate pigments and calculate Rf values using plant pigment chromatography, describe a technique to determine the photosynthetic rate, compare photosynthetic rates at different light intensities using controlled experiments and explain why rate of photosynthesis varies under different environmental conditions. In the second part of the lab, we used chloroplasts...

Chlorophyll, Chloroplast, Light 1762  Words | 6  Pages

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Leaf and Photosynthesis

 The Relative Rate of Photosynthesis of Spinach leaves when they are subjugated to Different Concentration levels of a Bicarbonate Solution. And how we determined that the highest Concentration solution yielded the fastest rate of Photosynthesis. Abstract The purpose of this experiment was to determine the rate of photosynthesis in different concentrations of a Bicarbonate solution. My Hypothesis was that if you placed the spinach disks in the highest concentration of bicarbonate then...

Carbon dioxide, Chemistry, Concentration 822  Words | 3  Pages

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Rate of photosynthesis

The Rate Of Photosynthesis: Lab report 1) Construct a graph of your data 2) Using the graph, estimate the time at which 50 percent of the leaf disks were floating on the surface. The point at which 50 percent of the leaf disks are floating will be you point of reference for future investigations Using the graph the estimated time that roughly 50% of the leaf disks were floating on the surface was around the 10th minute. At the 10th minute our number rose up...

Carbon dioxide, Energy, Leaf 385  Words | 2  Pages

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bio lab report Transpiration

Force which causes continuous upward movement of water and mineral salts and this force is called transpiration pull. Apart from to water, gas like carbon dioxides from the air can also pass through by the pore of the surface of the plants for photosynthesis. But in this experiment, we would like to focus on the negative pressure which can pull the water up through the xylem but not the CO2. Principle: The Cohesion-Tension Theory is one of the force which cause the movement of water and hence...

Evaporation, Leaf, Plant physiology 995  Words | 4  Pages

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Heart Rate Lab Report

the difference in heart rates before and during intense exercise. Aim: The aim of the investigation was to discover how the heart rate varied with the intensity of exercise. The heart rate is a term describing the regularity of the cardiac cycle. The heart rate is the amount of times it contracts (beats) in a unit of time, nearly always per minute. At rest the adult female’s heart rate regulates 75 bpm (beats per minute) but this varies between people. If the heart rate is measured before, during...

Adenosine triphosphate, Beat Generation, Blood 1103  Words | 4  Pages

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wavelengths of light on the rate of photosynthesis Introduction This experiment was performed to investigate the effects of different wavelengths of light on the rate of photosynthesis. If a multiple colored film petri dishes are place under a 50 watt lamp, then the rate of photosynthesis will be greater for those with red, blue and clear film, than those with green and black film. We believed the petri dishes with the red, blue and clear film would produce the best results of photosynthesis as compared...

Arabidopsis thaliana, Color, Electromagnetic radiation 981  Words | 4  Pages

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The Duckweed Experiment: Effects of Lowering Light Intensity on the Rate of Per Capita Growth of Lemna Minor

grow rapidly, making it the ideal specimen for our experiment. It is hypothesized that altering the amount of light received by duckweed will alter its photosynthetic rate. It is predicted that a lower light intensity will lower the rate of growth in duckweed. Two treatment groups were covered with a screen in order to reduce light intensity. Both groups were kept under a controlled light source for fourteen days and plant counts were taken at regular intervals. The ravg for the experimental group...

Biotic component, Carrying capacity, Overpopulation 1545  Words | 5  Pages

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Rate of photosynthesis Design

Biology SL Rate of Photosynthesis Design Design a lab to investigate the effect of a factor on the rate of photosynthesis. Aspect 1: Research question: How can we measure the affect of light on the rate of photosynthesis? For my design my independent variable I will change the distance between the plant and the light. I will repeat my experiment 5 times. Each time I will move it 10cm further. This could affect the amount of oxygen bubbles due to the heat coming from the light bulb. My dependent...

Fluorescent lamp, Incandescent light bulb, Light 701  Words | 3  Pages

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Environmental Lab Report

HAEF Psychico College ENVIRONMENTAL SYSTEMS & SOCIETIES LAB REPORT (SL) TITLE OF LAB : Investigation of the impact of overpopulation in biodiversity Objective of the investigation: To investigate the impact of climate change in biodiversity Research Question: How does the temperature change ( each pot will be held in 35°C,  20°C,  10°C,  0°C,  -10°C respectively) influence the growth of lettuce plants calculated from the measurement of the weight of each plant every 2 days...

Annual plant, Greenhouse, Light 709  Words | 3  Pages

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How light intensity effects the rate of photosynthesis.

changing light intensity on the rate of photosynthesis. What is Photosynthesis? Photosynthesis is how plants get their food. The reason why plants have leaves, roots or being green is all linked to photosynthesis. In photosynthesis, a plant takes carbon dioxide from the air and water from the soil and uses the light from sunlight to turn them into food. Photosynthesis occurs only in the presence of light, and takes place in the chloroplasts of green plant cells. Photosynthesis can be defined...

Carbon dioxide, Fluorescent lamp, Incandescent light bulb 1886  Words | 9  Pages

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