Chapter 8: Cellular Reproduction – Cells from Cells 1. What are the three important roles of cell division? 2. Compare and contrast sexual and asexual reproduction. 3. Distinguish between the terms: DNA‚ gene‚ chromosome‚ replicated chromosome‚ sister chromatid and centromere. 4. What are the two phases of the cell cycle? What are the three stages of interphase? 5. Mitosis is the division of the ______‚ while cytokinesis is the division of the ______. 6. Describe the appearance
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Submit your completed lab report to the Lab: Photosynthesis Lab assignment link for grading. For information on how this assignment will be graded‚ please visit the Course Information sectionChlorophyll and Accessory Pigments A pigment is any substance that absorbs light. The color we see comes from the wavelengths of light that reflect. Chlorophyll‚ the green pigment common to all photosynthetic cells‚ absorbs all wavelengths of visible light except green. The green reflects back to our eyes
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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
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The process of photosynthesis can be summarized as the photoautotroph consumption of carbon compounds as food and release of oxygen compounds as waste. The methods to measure the rate of photosynthesis are various. One method utilizes CO2 sensors to measure photoautotrophs CO2 intake under various luminescent environments. An elementary method utilizes H2O and NaHCO3 (Sodium Bicarbonate) for submersion of deoxygenized photoautotroph specimens to measure the release rate of oxygen compounds. Through
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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 factor is a factor that controls any particular process at the minimum rate. This control the rate of the process which in this case is the light intensity. This can also be called the rate limiting factor as it affects the rate of photosynthesis. Introduction Photosynthesis is an essential process
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Process of Photosynthesis Photosynthesis is process by which plants containing chlorophyll make carbohydrates from water and carbon dioxide in the air in the presence of light. Green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. Photosynthesis provides the basic energy source for virtually all organisms. An extremely important byproduct of photosynthesis is oxygen‚ on which most organisms depend. Photosynthesis
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have the chemical structures of Carbon‚ Hydrogen‚ Oxygen and Nitrogen. Proteins have various functions such as making and breaking chemical bonds‚ transport‚ movement‚ signaling‚ regulation and metabolism (cellular process). Peptide Bonds are important while discussing proteins. Peptide Bonds are covalent bonds that join 2 amino acids‚ amino acids are also proteins monomer. Next are Carbohydrates. Carbohydrates incorporate Carbon‚ Hydrogen and Oxygen in a 1:2:1 ratio. They provide short term energy
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BIO 101 Lecture Notes for Respiration‚ Fermentation‚ and Photosynthesis Respiration During aerobic respiration‚ glucose is completely oxidized (all H’s removed) leaving CO2 as an endproduct. The H’s are taken by coenzymes (NAD and FAD) to the electron transport chain. There the energy is drained from the hydrogen electrons and the energy is used to make ATP. The H’s are ultimately accepted by O2 to make H2O as an endproduct. Respiration occurs in three major stages: 1) Glycolysis
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4/18/12 Chapter 10: Photosynthesis 1. Describe the energy transformation that occurs in photosynthesis. Solar energy to chemical energy specifically stored in sugar. SolarChemical energy (sugar) 2. Write the summary equation of photosynthesis. Solar + 6CO2 +6H2O C6H12O6+6O2 (simple) Complex 3. Photosynthesis produces organic sugar molecules. Where does the carbon come from in making the sugars? From carbon dioxide 4. Aerobic cellular respiration is catabolic‚ exergonic
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ANATOMY AND PHYSIOLOGY AN INTRODUCTION TO RESPIRATION In this essay we will consider a few major aspects of respiration. We shall first consider the interesting history of the study of respiration before moving on to our modern understanding of respiration. We will look at the structure and function of the respiratory system including the upper and lower respiratory tracts with a note on the control system. Secondly we will consider the physiology of respiration. Thirdly we will discuss some of the major
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