Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 8, Problem 4TYK
Summary Introduction
Introduction:
While photosynthesis leads to the synthesis of carbohydrates (glucose), the same glucose is utilized during respiration to produce energy in the form of ATP (adenosine triphosphate). Though these reactions work in a different way, they have certain similarities.
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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.
Through light reductions, ADP is phosphorylated into ATP via chemiosmosis. What is this process called?
a. Reduction
b. Calvin Cycle
c. Photophosphorylation
d. Photosynthesis
Which of the following questions is most relevant to understanding the
Calvin cycle?
A How does chlorophyll capture light?
B How is ATP used in the formation of 3-carbon carbohydrates?
C How is NADP+ reduced to NADPH?
D How is ATP produced in chemiosmosis?
Chapter 8 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 8.1 - What are the two stages of photosynthesis?Ch. 8.1 - In which organelle does photosynthesis take place...Ch. 8.2 - What is the difference in function between the...Ch. 8.2 - Prob. 2SBCh. 8.2 - What is the difference between the linear electron...Ch. 8.3 - What is the reaction that rubisco catalyzes? Why...Ch. 8.3 - How many molecules of carbon dioxide must enter...Ch. 8.4 - Prob. 1SBCh. 8.4 - Prob. 2SBCh. 8.4 - How are carbon fixation and the Calvin cycle...
Ch. 8.5 - How are the reactants and products of...Ch. 8 - An organism exists for long periods by using only...Ch. 8 - Prob. 2TYKCh. 8 - Which of the following is a correct step in the...Ch. 8 - Prob. 4TYKCh. 8 - Prob. 5TYKCh. 8 - Which of the following statements about the C4...Ch. 8 - Prob. 7TYKCh. 8 - The oxygen released by photosynthesis comes from:...Ch. 8 - You bite into a spinach leaf. Which one of the...Ch. 8 - Animal metabolism and plant metabolism are related...Ch. 8 - Discuss Concepts Suppose a garden in your...Ch. 8 - Prob. 12TYKCh. 8 - Discuss Concepts Like other accessory pigments,...Ch. 8 - Prob. 14TYKCh. 8 - Prob. 15TYKCh. 8 - Prob. 16TYKCh. 8 - Photosynthesis directly opposes respiration in...Ch. 8 - Prob. 2ITDCh. 8 - Prob. 3ITDCh. 8 - Prob. 4ITD
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- Explain the reciprocal nature of the net chemical reactions for photosynthesis and respiration.arrow_forwardIs the following statement true or false? Unlike animals, which make many ATP by aerobic respiration, plants make all of their ATP by photosynthesis.arrow_forwardMatch 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_forward
- A decrease in entropy occurs during the CO2 uptake phase of the Calvin cycle, as freely moving CO2 molecules become fixed into a carbon skeleton. How can this occur without direct participation by NADPH and/or ATP?arrow_forwardIn ________, electrons that have been energized by light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) C4 pathways (e) photophosphorylationarrow_forwardCompare and contrast cell respiration and photosynthesis. a) Photosynthesis stores energy in NADH while cellular respiration stores energy in ATP. b) Photosynthesis releases CO2 while respiration releases O2. c) Only respiration creates ATP. d) Respiration is catabolic while photosynthesis is anabolic.arrow_forward
- 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 photorespirationarrow_forwardWhen oxygen gas is released as a result of photosynthesis, it is a direct byproduct of what process? a. splitting of water molecules b. the electron transfer system in the photosystems c. chemiosmosis d. reducing of NADP+arrow_forwardCompare 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_forward
- ________ reactions of photosynthesis generate NADPH and ATP to carry solar energy. a. The light-independent b. The light-dependent c. Both the light-dependent and -independentarrow_forwardHow are the NADPH and G3P molecules made during photosynthesis similar? a. They are both end products of photosynthesis. b. They are both substrates for photosynthesis. c. They are both produced from carbon dioxide. d. They both store energy in chemical bonds.arrow_forwardWhat do photosynthesis and cellular respiration have in common? Which ones are true? A. Both have large protein complexes that pump electrons across a membrane. b. Both require oxygen as an electron acceptor. c. Both have electron transport chains that begin with electrons from a high energy electron carrier. d. Both utilize the energy from a gradientarrow_forward
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