43) Which of the following is false?A) C3, C4, and CAM plants use the light dependent reactions to harvest energy fromthe sun and light independent reactions to turn that energy into sugar.B) C3 plants use photorespiration (as opposed to the Calvin Cycle) when CO2 is low) C4 plants utilize a specialized carbon fixation enzyme and a unique cell structureto reduce the problems of photorespirationD) CẢM plants perform all of the steps of photosynthesis at night to avoid ephotorespiration

The C3 plants are the plants that fix carbon dioxide via the C3 cycle using the RUBISCO enzyme,…

43) Which of the following is false? A) C3, C4, and CAM plants use the light dependent reactions to harvest energy from the sun and light independent reactions to turn that energy into sugar. B) C3 plants use photorespiration (as opposed to the Calvin Cycle) when CO2 is low C) C4 plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration D) CAM plants perform all of the steps of photosynthesis at night to avoid photorespiration

43) Which of the following is false? A) C3, C4, and CAM plants use the light dependent reactions to harvest energy from the sun and light independent reactions to turn that energy into sugar. B) C3 plants use photorespiration (as opposed to the Calvin Cycle) when CO2 is low C) C4 plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration D) CAM plants perform all of the steps of photosynthesis at night to avoid photorespiration

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter20: The Protists

Section: Chapter Questions

Problem 4CT: Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of...

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Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?
What is the significance that the combined absorption spectra of chlorophylls a and b roughly match the action spectrum of photosynthesis? Would photosynthesis be more efficient if their individual absorption spectra coincided exactly?
What is the Similarities and Differences of C3 Photosynthesis and CAM Pathway in performing photosynthesis?
Generally, increasing the concentration of carbon dioxide increases the rate of photosynthesis. What conditions could prevent this effect?
How do we know that C4 photosynthesis suppresses photorespiration?
Suppose a researcher is carrying out studies in which she adds a nonphysiological electron donor to a suspension of chloroplasts. Illumination of the chloroplasts yields oxidation of the donor. How could she tell whether photosystem I, II, or both are involved?
1. A) For the schematic of a chloroplast shown in the image attached, match the major input and output molecules of photosynthesis to the letters shown. Molecules: CO2, H2O, O2, sugar A: B: C: D: B) In the image attached, the light reactions are shown to take place in the thylakoid. Where specifically do these reactions take place? C) Where does the Calvin cycle take place?
What is the general chemical equation of photosynthesis? Why doesn't that equation clearly show the real origin of the molecular oxygen liberated?
Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma but the photosystems and membrane proteins of the electron transport chain are unharmed. This damage will have the most direct effect on which of the following processes?
What is the significance that the combined absorption spectra of chlorophylls a and b roughly match the action spectrum of photosynthesis? Wouldphotosynthesis be more efficient if their individual absorption spectra coincided exactly?
What is CAM photosynthesis and why is it better than either C3 or C4 photosynthesis in desert or very arid environments? How does it prevent water loss during the day?
what is the process called that provides the energy to pump protons during the light dependent reactions of photosynthesis? which direction are protons pumped?