RuBisCo is mutated so that it does not function. What would be a possible impact on the Calvin cycle? which options are true a. Less CO2 would be produced. b. Oxidation of NADPH would be decreased. c. G3P production would decrease. d. CO2 would be fixed at an increased rate. e. RuBP would be regenerated at a faster rate.

RuBisCo is mutated so that it does not function. What would be a possible impact on the Calvin cycle? which options are true a. Less CO2 would be produced. b. Oxidation of NADPH would be decreased. c. G3P production would decrease. d. CO2 would be fixed at an increased rate. e. RuBP would be regenerated at a faster rate.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter6: Where It Starts-photosynthesis

Section: Chapter Questions

Problem 11SA: The Calvin-Benson cycle starts with _______. a. the absorption of photon energy b. carbon fixation...

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The Calvin-Benson cycle starts with _______. a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formation
Which of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2
What is the molecule that leaves the Calvin cycle to be converted into glucose? a. ADP b. G3P c. RuBP d. 3-PGA
Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2 fixation b. converts light to chemical energy ____ autotroph c. self-feeder ____ ATP forms NADPH does not d. electrons cycle back to photosystem ____ photorespiration e. problem in C3 plants ____ photosynthesis f. Calvin-Benson cycle product ____ pigment g. water molecules split ____ photolysis in photosynthesis h. rubisco function
Under certain conditions, the thylakoid membrane of the chloroplast may become 'leaky’ allowing ions to freely diffuse across it. A consequence of that is carbon fixation will stop. Why would the Calvin Cycle stop? A. Because oxidation of water by PSII would stop. B. Because reduction of NADP+ to NADPH would stop. C. Because the stroma would contain ADP but no ATP. D. Because levels of G3P in the stroma would increase.
How is the difference made up in the Calvin cycle when more ATP is used than NADPH? A. The Calvin cycle occurs half as often as the light-dependent reaction B. The cyclic pathway creates more ATP C. Additional ATP is created from glucose D. Excess NADPH is reused in the light reaction
Which of the following is an incorrect statement about the Calvin cycle? A.The main inputs to the reactions are NADPH, ATP, and CO2. B.The main outputs of the reactions are NADP+ , ADP, and sugar. C.More NADPH is used than ATP during the Calvin cycle. D.Carbon fixation is the first step of the process
Explain briefly why the following ideas are false. a. Photosynthesis is the food-making process done by plants. b The Calvin cycle was called the dark reactions because it can only take place in the absence of light. c. Photosynthesis can only be powered by sunlight.
Which of the following statements about the Calvin-Benson cycle is TRUE? Select one: a. Blocking light causes 3PG to accumulate. b. All the statements are false. c. Rubisco catalyzes the formation of RuBP. d. ATP and NADPH + H+ are required to regenerate RuBP. e. More molecules of NADPH than ATP are required per cycle.
If an enzyme in the Calvin cycle were knocked out, then a the light-dependent reactions would increase. b the light-dependent reactions would stop. c the light-dependent reactions would diminish. d the light-dependent reactions would be unaffected.
Through light reductions, ADP is phosphorylated into ATP via chemiosmosis. What is this process called? a. Reduction b. Calvin Cycle c. Photophosphorylation d. Photosynthesis
Compare the light reaction with the calvin cycle of phosynthesis in plants,which of the following requires NADPH? a. light reaction alone b. the calvin cycle alone c. both light reaction and calvin cycle d. neither the light nor the calvin