Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 19, Problem 4P
Interpretation Introduction
Interpretation: The correct options needs to be filled in the given blanks.
Concept Introduction :
Cyclic photophosphorylation is defined as the synthesis of ATP coupled with the electron transport and activated only by Photosystem I. There is no reduction of NADP+. Water is not required and oxygen is not evolved in the process.
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Which of the following statements is most correct? Explain
A. NAD/NADH are involved in catabolic reactions.
B. In plants the major source of NADH is from ferredoxin formed from the high energy electrons generated by Photosystem II.
C. Large molecules are built using catabolic reactions.
D. NADP is not found in animal cells.
The Calvin cycle reactionsa. produce carbohydrate.b. convert one form of chemical energy into a different form ofchemical energy.c. regenerate more RuBP.d. use the products of the light reactions.e. All of these are correct.
Plants undergo both photosynthesis and cellular respiration. Why don’t plants simply use the ATP pro¬duced in the light reactions of photosynthesis to drive cellular processes?
A) The ATP produced during photosynthesis is chemically different from the ATP produced during cellular respiration and cannot be used for anabolic reactions
B) ATP cannot be stockpiled so the plants would have no energy during non-daylight hours
C) The plants have no way of getting the ATP made during photosynthesis out of the chloroplasts to the rest of the cell
D) Plants rely on cellular respiration to remove excess O2 and prevent photorespiration
Chapter 19 Solutions
Biochemistry
Ch. 19 - Prob. 1PCh. 19 - Prob. 2PCh. 19 - Prob. 3PCh. 19 - Prob. 4PCh. 19 - Prob. 5PCh. 19 - Prob. 6PCh. 19 - Prob. 7PCh. 19 - Prob. 8PCh. 19 - Prob. 9PCh. 19 - Prob. 10P
Ch. 19 - Prob. 11PCh. 19 - Prob. 12PCh. 19 - Prob. 13PCh. 19 - Prob. 14PCh. 19 - Prob. 15PCh. 19 - Prob. 16PCh. 19 - Prob. 17PCh. 19 - Prob. 18PCh. 19 - Prob. 19PCh. 19 - Prob. 20PCh. 19 - Prob. 21PCh. 19 - Prob. 22PCh. 19 - Prob. 23PCh. 19 - Prob. 24PCh. 19 - Prob. 25PCh. 19 - Prob. 26PCh. 19 - Prob. 27PCh. 19 - Prob. 28PCh. 19 - Prob. 29PCh. 19 - Prob. 30PCh. 19 - Prob. 31P
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- 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.arrow_forwardExplain 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.arrow_forwardNADH (Select all choices that apply) A. is an oxidized molecule B. is the reduced form of NAD+ C. is produced in photosynthesis non-cyclic reactions D. is responsible for allowing more ATP production than FADH2 E. plays a role in glycolysis, transition, Krebs cycle and the ETSarrow_forward
- a.) Write the overall equation for photosynthesis. Show the states (s,l,g) of each molecule. It must be balanced.arrow_forwardThe following equation (look photo) summarizes the reactants and products of A. Aeorbic respiration B. Photosynthesisarrow_forwardThe Calvin cycle is an anabolic pathway. A. True B. Falsearrow_forward
- 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 functionarrow_forwardThe direct formation of ATP by the transfer of a phosphate group from a donor molecule to ADP is called ________. a. substrate-level phosphorylation b. oxidative phosphorylation c. cyclic photophosphorylation d. noncyclic photophosphorylation e. indigenous phosphorylationarrow_forwardIndicate whether the statement is true for aerobic respiration, photosynthesis or both: The transfer of electrons via redox reactions is coupled to the movement of protons from one side of the membrane to the other a)Aerobic Respiration b)Photosynthesis c)Botharrow_forward
- 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 calvinarrow_forwardThrough light reductions, ADP is phosphorylated into ATP via chemiosmosis. What is this process called? a. Reduction b. Calvin Cycle c. Photophosphorylation d. Photosynthesisarrow_forwardCompare the light reaction with the calvin cycle of phosynthesis in plants,which of the following requires glucose? a. light reaction alone b. the calvin cycle alone c. both the ligh reaction and calvin cycle d. neither the light nor the calvin cyclearrow_forward
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