CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 7, Problem 4TYK
When light strikes chlorophyll molecules in the reaction-center complex, they lose electrons, which are ultimately replaced by
a. splitting water.
b. oxidizing NADPH.
c. the primary electron acceptor.
d. the electron transport chain.
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Students have asked these similar questions
The noncyclic electron pathway, but not the cyclic pathway, generatesa. 3PG.b. chlorophyll.c. ATP.d. NADPH.
Define the following terms: a. photosynthesis b. photosystem c. light harvesting antenna d. reaction center e. chlorophyll
Which of the following is true of chloroplastic ATP:
Select one:
a.
it is made in the Calvin cycle and consumed in the light reactions
b.
it is used during photosynthesis, S assimilation, and N assimilation
c.
it does not leave the chloroplast, and is used to breakdown molecules
d.
it is made during photosynthesis and S assimilation
e.
it leaves the chloroplast, and is consumed in respiration and N assimilation
Chapter 7 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 7 - Complete this summary map of photosynthesis.Ch. 7 - In photosynthesis, __________ is oxidized and...Ch. 7 - Which of the following are produced by reactions...Ch. 7 - When light strikes chlorophyll molecules in the...Ch. 7 - The reactions of the Calvin cycle are not directly...Ch. 7 - Which of the following does not occur during the...Ch. 7 - Why is it difficult for C3 plants to carry out...Ch. 7 - How is photosynthesis similar in C4 plants and CAM...Ch. 7 - To synthesize one glucose molecule, the Calvin...Ch. 7 - Compare and describe the roles of CO2 and H2O in...
Ch. 7 - Explain why a poison that inhibits an enzyme of...Ch. 7 - What do plants do with the sugar they produce in...Ch. 7 - Explain what is meant by saying the light...Ch. 7 - The following diagram compares the chemiosmotic...Ch. 7 - Continue your comparison of electron transport and...Ch. 7 - Prob. 16TYKCh. 7 - Most scientific experts agree that climate change...
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- Which of the following structures is not a component of a photosystem? a. ATP synthase b. antenna molecule c. reaction center d. primary electron acceptorarrow_forwardIdentify which of the following statements is a lie? Select one: a. ATP is produced in dark reactions. b. Carbon fixation does not need light. c. Plant utilize carbon dioxide in order to produce oxygen.arrow_forwardDefine the following terms: a. light-dependent reactions b. Z-scheme c. water-oxidizing clock d. noncyclic electron transport e. cyclic electron transportarrow_forward
- Which of the following statements is/are FALSE? a.NADPH is formed in the stroma. b.The cyclic electron transport involves PSII only. c.pH gradient can be formed from the splitting of H2O. d.In the pH gradient, stroma is acidic and thylakoid space is basic.arrow_forwardWhich of the following statements is TRUE? Select one: a. The immediate product of the light energy absorbed by the P680 reaction center is used to produce NADPH. b. In cyclic photophosphorylation, the chlorophyll is reduced by electrons liberated from water molecules. c. The O2 gas produced during photosynthesis is derived from CO2. d. In noncyclic photophosphorylation, electrons from water are used directly for the reduction of P700. e. All of the statements are false.arrow_forwardPhotosynthesis A. is the only energy-generating pathway for plants, cyanobacteria, and algae. B. consist two stages: light-dependent stage which fix CO₂, light-independent stage which generate glucose. C. can capture and convert energy from light to chemical energy in the form of ATP and NADPH. D. oxidize organic carbon molecule to CO₂, while reduce water to oxygen.arrow_forward
- When discussing why the rate of photosynthesis did not increase at higher light intensities, the investigator mentioned the possibility that high light intensities could damage chlorophyll, which would result in a decrease in oxygen production. Which of the following accurately explains the role of chlorophyll in oxygen production during photosynthesis and why damage to chlorophyll would results in lower oxygen production? Select one or more: a. Chlorophyll participates in carbon fixation during the Calvin Cycle. During this process, oxygen molecules are formed. b. Chlorophyll captures energy from sunlight and releases high energy electrons that enter the electron transport chain in the Calvin Cycle. During this process, oxygen molecules are formed. c. Chlorophyll participates in carbon fixation during the light reactions. During this process, oxygen molecules are formed. d. Chlorophyll captures energy from sunlight and releases high energy electrons that enter the electron…arrow_forwardThe first step of the light reactions is the transfer (powered by solar energy) of an electron to the primary electron acceptor within photosystem proteins of the: a. Thylakoid membrane b. Intermembrane space of a chloroplast c. Stroma of a chloroplast d. Cell membrane of a mesophyll cellarrow_forwardWhich of the following options best explains how less chlorophyll would affect the proces of photosynthesis in plants? 6. A. It would increase the rate of photosynthesis because of the increased production of food. B. It would limit the amount water plants are able to take in, resulting in a slower rate of photosynthesis. C. It would increase the production of oxygen because the plant would need to work hard to feed themselves. С. D. It would limit the amount of light absorbed by the plant and decrease the amount of food the plant is able to produce for itself.arrow_forward
- The following chemicals are involved in electron transport. Which of these chemicals has the strongest pull on electrons? a. NADH b. FADH2 c. O2 d. Ubiquinonearrow_forwardWhich of the following are reactants of the light reactions of photosynthesis. A. Glucose B. Water C. ATP D. NADP E. Light energy F. NADPH G. Carbon dioxide H. Oxygenarrow_forwardHow is ATP produced in chloroplasts? Select one: a. When a photon hits an ADP molecule, it is kicked to a higher energy level, so it can combine with P to form ATP b. an enzyme transfers the P group from a substrate to ADP, forming ATP c. water is split into protons, electrons and oxygen. d. When a photon hits a chlorophyll molecule, the energy is transformed into heat e. an electron transport chain creates a proton gradient over a membrane. ATP is made when these protons move passively through a large protein complex embedded in the membrane.arrow_forward
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