"Hypothesis For Photosynthesis" Essays and Research Papers

  • Hypothesis For Photosynthesis

    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 to the...

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

  • Photosynthesis

    All green parts of a plant have chloroplasts. However, the leaves are the major site of photosynthesis for most plants. There are about half a million chloroplasts per square millimeter of leaf surface. The color of a leaf comes from chlorophyll, the green pigment in the chloroplasts. Chlorophyll plays an important role in the absorption of light energy during photosynthesis. Chloroplasts are found mainly in mesophyll cells forming the tissues in the interior of the leaf. O2 exits and CO2 enters...

    Atom, Calvin cycle, Chloroplast 1830  Words | 6  Pages

  • Photosynthesis

    Photosynthesis By Sofie Inwood Aim: To determine whether chlorophyll and light is necessary for starch formation. Hypothesis: Chlorophyll and light are both necessary for starch formation. Materials: * 600mL beaker * Access to water * Safety glasses * Bunsen burner * Tripod * Gauze mat * A large white evaporating dish * Scissors and forceps | * Glass stirring rod * Test tube rack * Test-tube (30mm x 180mm) * Methylated spirits * Iodine solution * 100mL...

    Boiling, Chlorophyll, Leaf 608  Words | 3  Pages

  • Photosynthesis

    effect of differing wavelengths of visible light on the photosynthetic activity of Beta vulgaris Introduction Photosynthesis is a crucial biological process that occurs within the chloroplasts of plant cells where CO2 + H2O + Sunlight C6H12O6 + O2. The chloroplasts use light, an electromagnetic energy source, to produce food for the plant in the form of sugar molecules. During photosynthesis, the excited electrons from the light pass through proteins in the electron transport chain (ETC), where ATP...

    Carbon dioxide, Electromagnetic radiation, Electromagnetic spectrum 2078  Words | 6  Pages

  • Photosynthesis

    energy in food originally came from ATP. False pulling together 12. The term photosynthesis means “pulling apart with light” in Greek. True__ 13. The energy of sunlight is stored in the chemical bonds of carbohydrates. 14. Complete the table comparing two types of organisms. Autotrophs and Heterotrophs Type Description Examples Autotrophs An organism that is able to create its own food through photosynthesis (simple organic substances) Plants Heterotrophs An organism that “feeds”...

    Adenosine triphosphate, Calvin cycle, Chloroplast 731  Words | 5  Pages

  • Photosynthesis

    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

  • Photosynthesis

    Photosynthesis Light reaction of photosynthesis occurs on the thylakoid membrane inside of chloroplast. Light energy excites electrons that are carried down an electron transport chain. The purpose of this is to give the hydrogen ions the energy they need for active transport. It is active because the concentration of hydrogen ions outside the thylakoid is less than inside. Now that there is a high concentration of hydrogen inside the thylakoid, ATP synthase can occur. As the hydrogen go through...

    Adenosine triphosphate, C4 carbon fixation, Calvin cycle 1291  Words | 4  Pages

  • 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

  • Hypothesis

     The word ‘Hypothesis is derived from a Greek word, which means ‘to suppose’. It is usually considered as the principal instrument in research. For a researcher it is a formal question that he or she intends to resolve. In this way a hypothesis may be defined as a proposition or a supposition. The main function of hypothesis is to guide the collection and processing of materials and direct the research. Hypothesis is a tentative conclusion. It is facts based theory...

    Historical method, Hypothesis, Literary criticism 2517  Words | 7  Pages

  • Photosynthesis Paper

    The effect of different wavelengths of light on photosynthesis rate in spinach leaves Abstract: This experiment was performed to test the effect of different wavelengths of light had on photosynthesis. According to the results gathered we can say that if two plants are put under different lights, one green and one a normal light, that the plant under the normal light will perform photosynthesis at a higher rate than the plant under the green light. This experiment is important because it shows...

    Chlorophyll, Electromagnetic radiation, Leaf 1264  Words | 4  Pages

  • 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

  • Photosynthesis

    osmosis affects different types of potato such as King Edward compared to a different variation of potato such as the Maris Piper potato. This is because they could have varying amounts of starch in them which could ultimately affect the rate of photosynthesis....

    Cell wall, Concentration, Osmosis 2344  Words | 7  Pages

  • 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

  • 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

  • Photosynthesis Lab

    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

  • 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

  • Carbon Dioxide and Photosynthesis

    Water Weed Photosynthesis Lab Make a copy of this document and rename it as: 2 Names Photosynthesis Lab For example: Bob and Susan Photosynthesis Lab Share the document with your lab partner. Delete this highlighted portion when you have completed the instructions. The blue lettering will help you know where to write your answers or record your data. Part 1: Background questions Photosynthesis takes place in what plant cell organelle? Chloroplast What are the 3 things plants...

    Carbon, Carbon dioxide, Carbon monoxide 783  Words | 6  Pages

  • 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...

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

  • Chlorine in Photosynthesis

    Chlorine in Photosynthesis Experiment Abstract Photosynthesis the means by which green plants and different types of organisms use light from the sun to synthesize foods from CO2 and H2O. Chlorine is a chemical element usually in the form of a yellow-green gas and is a strong oxidizing agent. Elodea is a type of aquatic plant also known as waterweed that is native to North America. In the experiment that took place, the effect of chlorine in the presence of photosynthesis reactions were...

    Acid, Carbon dioxide, Chlorine 950  Words | 3  Pages

  • Investigation Of The Rate Of Photosynthesis Of Pondweed

    Investigation of the rate of photosynthesis of pondweed. Research question: How does the concentration of sodium bicarbonate relate to the amount of oxygen produced by Elodea (Canadian pond weed) in the process of photosynthesis? Hypothesis: If there is an increase in concentration of sodium bicarbonate the amount of oxygen produced will increase because the sodium bicarbonate concentration will increase the carbon dioxide levels. Independent variable- Concentrations of sodium bicarbonate (8%...

    Carbon, Carbon dioxide, Chemistry 1242  Words | 6  Pages

  • Photosynthesis in Elodea Lab

    Elodea & Photosynthesis Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. Introduction This lab has been created in order to find what extent does distance from a light source (5cm, 10cm, and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea water plants. Hypothesis:...

    Carbon dioxide, Carbonate, Chlorophyll 611  Words | 3  Pages

  • 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

  • Photosynthesis Lab Report

    ------------------------------------------------- Date: 9/13/2012 ------------------------------------------------- ------------------------------------------------- The Effects of Light Intensity and NaHCO3 concentrations on the Rate of Photosynthesis ------------------------------------------------- ------------------------------------------------- Definitions of terms: ------------------------------------------------- The experiment conducted in class was to determine whether plants...

    Carbon dioxide, Chloroplast, Eukaryote 1342  Words | 5  Pages

  • Photosynthesis Experiment

    Photosynthesis Experiment Introduction Photosynthesis is a process used by plants, making inorganic molecules into organic molecules (food) using sunlight. Carbon dioxide + Water (mainly from rain)  Glucose + Oxygen From this process, carbon dioxide comes from environment. Glucose, as a product is used to make energy for growth. Lastly, the oxygen is a waste product in this chemical reaction, which become part of the Earth’s atmosphere. At this experiment, carbon dioxide and water...

    Carbon, Carbon dioxide, Carbonate 623  Words | 5  Pages

  • Biology Research for Photosynthesis

    AP Biology, Block 1 3 February, 2013 Mrs. Killough Shape of Leaf Disks and Photosynthesis Research Question: Does the shape of the leaf disks affect the rate of photosynthesis if the surface area of the leaves are kept the same? Purpose: Through this experiment, I seek to answer whether the shape of leaf disk affects the rate of photosynthesis to find out which leaves are more efficient at utilizing free energy from the environment. Specifically, if there...

    Arithmetic mean, Leaf, Median 1632  Words | 6  Pages

  • 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

  • The Effect of Light Intensity on Photosynthesis

    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 water to partake in photosynthesis. Photosynthesis...

    Chemistry, Light, Measurement 1608  Words | 6  Pages

  • 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

  • 2 Elodea And Photosynthesis Lab

     #2 Elodea and Photosynthesis by __________________ Name:_____________________ Class:_____________________ Teacher:_____________________ Date:_____________________ Elodea and Photosynthesis Introduction: Photosynthetic organisms (cyanobacteria) first evolved about 3.5 billion years ago and are the oldest know fossils on Earth. Cyanobacteria live in water, can manufacture their own food, and are one of the most important groups of bacteria on Earth. The Cyanobacteria have...

    Carbon dioxide, Cyanobacteria, Earth 921  Words | 5  Pages

  • 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

  • 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

  • Lab 5 Worksheet Photosynthesis

    link to Launch “Virtual Lab #6- Photosynthesis” Read all instructions on the left-hand side of the lab. Watch the short Video at the bottom of the lab Complete the “Pre-Lab” Questions. Complete the Lab Activity Record your findings in the “Results” and “Post-Lab” sections and answer all review questions Pre-Lab: 1.) List all of the colors found in the visible light spectrum (We covered this in lecture) Red - Orange - Yellow - Green - Blue - Violet 2.) Make a hypothesis about which color of the visible...

    Color, Green, Light 683  Words | 3  Pages

  • How Light Intensity Affect Photosynthesis

    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 out process of photosynthesis. Some photosynthesis...

    Carbon dioxide, Carbonate, Light 853  Words | 3  Pages

  • 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

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

    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 disks less...

    Chlorophyll, Chloroplast, Color 2388  Words | 7  Pages

  • The Effect of Temperature on Photosynthesis

    product of photosynthesis, which is the process that converts energy in sunlight to chemical forms of energy that can be used by biological systems2. Many organisms are not able to use the energy obtained from sunlight directly; however, plants are able to use this energy and convert it into chemical energy by converting CO2 (carbon dioxide) and H2O (water) to organic materials3. The energy source for photosynthesis comes from sunlight, which allows for the fuel that drives photosynthesis. This process...

    Energy, Entropy, Heat 1085  Words | 4  Pages

  • Photosynthesis in Non-Green Plants

    ------------------------------------------------- photosynthesis in non – green plants School of Life Sciences BS11004 – Laboratory and Research skills Title: PRACTICAL 4&5 PHOTOSYNTHESIS IN NON-GREEN PLANTS Introduction Photosynthesis is a vital process that occurs in plants and is carried out by a sequence of pigments which have the ability to absorb visible light. The most vital pigments are chlorophylls which are green in colour. From this it can be concluded that...

    Chlorophyll, Color, Electromagnetic spectrum 1302  Words | 5  Pages

  • Respiration and Photosynthesis

    “Respiration” and “Photosynthesis” All life depends on two chemical reactions “Respiration” and “Photosynthesis”. These two processes are quite crucial because they are a source to nearly all life on Earth. Both of these processes are quite similar yet differentiate vastly. In this essay I’ll be comparing and contrasting “Photosynthesis” and “Respiration”. I’ll start by discussing what actually happens...

    Adenosine triphosphate, Carbohydrate, Metabolism 838  Words | 3  Pages

  • 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

  • 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

  • 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

  • Photosynthesis Notes

    process of photosynthesis requires sunlight for its nutrients to make their way into the chlorophyll on green plants. This suggests that without direct sunlight, photosynthesis will not be completed correctly or the plants functions will not work properly. Majority of plants that undergo photosynthesis have chlorophyll stored within them, it is what gives them their green color. However, there are few species of plants that don’t acquire chlorophyll, but still undergo the process of photosynthesis. Specific...

    Algae, Carbon dioxide, Chlorophyll 1142  Words | 3  Pages

  • Photosynthesis Review

    HW Review for Photosynthesis exam: Due Monday March 28 Reminder your lab write up will be a next week. If your lab is this Friday you also will get a week to complete your full lab write-up. Sample questions: 1. twenty-five plants were placed in each of four closed containers and then exposed to light conditions shown in the data table below. All other environmental conditions were held constant for a period of 2 days. At the beginning of the investigation, the quantity of CO2 present in each...

    Adenosine triphosphate, Calvin cycle, Carbon 1205  Words | 4  Pages

  • Photosynthesis Review

    HW Review for Photosynthesis exam: Due Monday March 28 Reminder your lab write up will be a next week. If your lab is this Friday you also will get a week to complete your full lab write-up. Sample questions: 1. twenty-five plants were placed in each of four closed containers and then exposed to light conditions shown in the data table below. All other environmental conditions were held constant for a period of 2 days. At the beginning of the investigation, the quantity of CO2 present in each...

    Adenosine triphosphate, Calvin cycle, Carbon 1205  Words | 4  Pages

  • Chlorophyll and Photosynthesis

    Photosynthesis Matt Lazar 5/13/96 8th Hr. When you and me eat, we find our food. When plants eat, they make their own food and energy. They make their food and energy through a process called photosynthesis. Through photosynthesis oxygen is also produced. Photosynthesis is "a process in which green plants synthesize carbohydrates from carbon dioxide and water....The reverse of this reaction provides energy for plants, for animals that eat plants, for animals that eat animals that eat plants"...

    Chemistry, Chlorophyll, Chloroplast 778  Words | 3  Pages

  • 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

  • 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

  • Photosynthesis Theory

    Background Theory Photosynthesis: Plants require water from the soil, sunlight and carbon dioxide found in the atmosphere for growth and development. In the process of photosynthesis, carbon dioxide and water – in the presence of chlorophyll and light energy – are converted into sugar and oxygen, which is given off as a by-product. Generally, as sunlight increases in intensity, the rate of photosynthesis also increases [1]. This means greater food production within the plant. Many garden vegetables...

    Electromagnetic radiation, Electromagnetic spectrum, Energy 851  Words | 3  Pages

  • Photosynthesis Review

    HW Review for Photosynthesis exam: Due Monday March 28 Reminder your lab write up will be a next week. If your lab is this Friday you also will get a week to complete your full lab write-up. Sample questions: 1. twenty-five plants were placed in each of four closed containers and then exposed to light conditions shown in the data table below. All other environmental conditions were held constant for a period of 2 days. At the beginning of the investigation, the quantity of CO2 present in each...

    Adenosine triphosphate, Calvin cycle, Carbon 1205  Words | 4  Pages

  • 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

  • Hypothesis Testing

    understanding of hypothesis testing. The textbook explained the aspects and steps of hypothesis testing in a legible fashion, while the video helped demonstrate a real-life application. I learned from the text that hypothesis testing is a “Procedure for deciding whether the outcome of a study (results from a sample) supports a particular theory or practical innovation (which is thought to apply to a population)” (Aron A., Aron, E., and Coups, 2011, p. 145). I also learned that hypothesis testing...

    Aggression, Hypothesis, Hypothesis testing 822  Words | 4  Pages

  • 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

  • Photosynthesis Review

    Photosynthesis review Short Answer 1. How do heterotrophs obtain energy? 2. What is ATP, and when is energy released from it? 3. Write the overall equation for photosynthesis in both symbols and words. 4. Photosystems I and II are both located in the thylakoid membrane. What advantage does their proximity provide? 5. What does the Calvin cycle do? 6. What is the difference between an autotroph and a heterotroph? Give an example of each type of organism. 7. Explain how heterotrophs...

    Adenosine triphosphate, Autotroph, Calvin cycle 470  Words | 3  Pages

  • Rate of photosynthesis Design

    Yanniek Heijkoop Grade 11 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...

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

  • Null Hypothesis

    “Accept” the Null Hypothesis by Keith M. Bower, M.S. and James A. Colton, M.S. Reprinted with permission from the American Society for Quality When performing statistical hypothesis tests such as a one-sample t-test or the AndersonDarling test for normality, an investigator will either reject or fail to reject the null hypothesis, based upon sampled data. Frequently, results in Six Sigma projects contain the verbiage “accept the null hypothesis,” which implies that the null hypothesis has been proven...

    Null hypothesis, Sample size, Statistical hypothesis testing 1012  Words | 4  Pages

  • Photosynthesis Experiment

    between light intensity and photosynthesis that could normally be seen had the experiment taken place without errors. The graph should show an increase in arbitrary units the further away from the light source the beaker is because the greater the distance from the light source, the lower the light intensity and so less photosynthesis would take place in the algal balls. This would result in more CO2 being present because it wouldn’t be being used up during photosynthesis. The decrease in CO2 in the...

    Algae, Carbon dioxide, Color 1755  Words | 6  Pages

  • What is an Hypothesis?

    Hypothesis: The local car dealership that offers in house financing has a large percentage of accounts that are past due because of the lenient credit profile they utilize to approve financing. A hypothesis is a statement that variables are assigned to the case. (Cooper & Schindler, 2011) In the above hypothesis the case is accounts past due and the variable is the lenient credit profiles that are utilized for approving finance. My hypothesis has adequacy for its purpose, is testable. I believe...

    Credit, Credit score, Scientific method 609  Words | 3  Pages

  • Hypothesis Testing

    HYPOTHESIS TESTING WHAT IS THIS HYPOTHESIS???? • In simple words it means a mere assumption or supposition to be proved of disproved. • But, for a researcher it is a formal question that he intends to resolve. • Example: I assume that 1) under stress and anxiety a person goes into depression. 2) It leads to aggressive behaviour. Eg. : Students who get better counselling in a university will show a greater increase in creativity than students who were not counselled. • So, the hypothesis...

    Hypothesis testing, Null hypothesis, Statistical hypothesis testing 1393  Words | 6  Pages

  • Biochemistry of Photosynthesis

    Biochemistry of Photosynthesis Overall Word Equation: Water+ Carbon Dioxide( Carbohydrates+ Oxygen ((: light + chlorophyll) 1. Light Dependent Stage/ photochemical reaction/ light reactions: Word Equation: Water ( Hydrogen ions + Oxygen ((: light + chlorophyll) Site: On the Thylakoid membrane of the chloroplast Major events: • Light absorption o Chlorophyll in the thylakoids absorbs light. The...

    Adenosine triphosphate, Calvin cycle, Carbon dioxide 506  Words | 4  Pages

  • A Hypothesis Is a Claim

    A hypothesis is a claim Population mean The mean monthly cell phone bill in this city is μ = $42 Population proportion Example: The proportion of adults in this city with cell phones is π = 0.68 States the claim or assertion to be tested Is always about a population parameter, not about a sample statistic Is the opposite of the null hypothesis e.g., The average diameter of a manufactured bolt is not equal to 30mm ( H1: μ ≠ 30 ) Challenges the status quo Alternative never contains...

    Arithmetic mean, Hypothesis testing, Normal distribution 805  Words | 4  Pages

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