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Which of the following choices is correct when it comes to the statement as to why photorespiration is an energy-wasting process?
a. Due to its very low light requirement
b. Due to loss of carbon dioxide that has already been fixed
c. Because it utilizes oxygen and ATP
d. It requires a high concentration of carbon dioxide
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Solved in 2 steps
- . Photorespiration ________. A) generates carbon dioxide and consumes ATP and oxygen B) generates ATP and sugars and consumes oxygen and carbon dioxide C) generates oxygen and consumes ATP, carbon dioxide, and sugars D) consumes carbon dioxide and generates ATP, sugars, and oxygenWhich of the following descriptions about photorespiration is not correct? Select one: a. Rubisco binds O2 instead of CO2. b. Carbon dioxide is released without producing ATP. c. It limits damaging products of light reactions that build up in the absence of the Calvin cycle at low CO2 concentrations. d. Peroxisomes and mitochondria rearrange and split the compound made by rubisco to fix CO2. e. It occurs in hot and dry conditions.does the process of photorespiration waste atp
- Over the past decades, the CO2 concentration in the atmosphere has increased. a. Predict the effect of increasing carbon dioxide concentrations on photorespiration. b. Scientists suggest that increasing CO2 concentrations are leading to higher average global temperatures. If temperatures are increasing, does this change your answer to part (a)?Photo-oxidation is: A. photorespiration B. photolysis C. light and oxygen induced breakdown D. All of the abovePhotorespiration occurs in _______ plants. a. C3 and CAM b. C4 and CAM c. C3, C4, and CAM d. C3 and C4
- Conditions that favor photorespirationWhy is phenolphthalein added to the beaker in the respiration experiment? a. It shows a color to let us know if the solution is acidic or basic. b. It takes part in the neutralization reaction. c. It speeds up the respiration reaction. d. It allows you to blow more air into the beaker during the experiment.Which of the following changes would decrease ATP production in the light-dependent reactions of photosynthesis? a. decreasing the pH of the thylakoid lumen b. decreasing the pH of the chloroplast stroma c. increasing the concentration of NADP+ in the chloroplast stroma d. making the thylakoid membrane freely permeable to protons by adding a proton channel e. two of the above would decrease ATP production
- The light dependent reactions of photosynthesis are characterized by A. oxidation of carbon dioxide, release of oxygen, synthesis of glucose. B. release of oxygen, fixation of carbon dioxide, hydrolysis of ATP. C. oxidation of water, reduction of NADP+ , hydrolysis of ATP. D. reduction of oxygen, oxidation of NADPH, formation of ATP. E. oxidation of water, reduction of NADP+ , formation of ATP.Read and analyze the following statements. (i) One of the end products of photosynthesis is the raw material for respiration. (ii) One of the end products of respiration is the raw material for photosynthesis. A. (i) is wrong and (ii) is correct B. both (i) and (ii) are correct C. both (i) and (ii) are wrong D. (i) is correct and (ii) is wrongCan respiration occur when illumination is 100%? Can respiration occur when illumination is 0%? Explain why (or why not) you would expect this?