In photosynthesis _______ is oxidized and _______ is reduced?A. water...oxygenB. carbon dioxide...waterC. water...carbon dioxideD. glucose... carbon dioxide
Which of the following are produced by reactions that take place in the thylakoids and consumed by reactions in the stroma?A. CO2 and H2OB. ATP and NADPHC. ATP, NADPH and CO2D. ATP, NADPH, and O2
When light strikes chlorophyll molecules in the reaction-center complex, they. lose electrons, which are ultimately replaced by?A. spitting waterB. oxidizing NADPHC. the primary electron acceptorD. the electron transport chain
The reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Why?A. It is often too cold at night for these reactions to take place.B. Carbon Dioxide concentrations decrease at nightC. The Calvin cycle depends on products of the light reactionsD. plants usually close their stomata at night.

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Which of the following does not occur during the Calvin cycle?A. carbon fixationB. oxidation of NADPHC. consumption of ATPD. release of oxygen
Why is It difficult for C3 plants to carry out photosynthesis in very, hot dry environments such as deserts?A. The light is too intense and destroys the pigment molecules.B. The closing stomata keeps CO2 from entering and O2 from leaving the plantC. They must rely on photorespiration to make ATP.D. CO2 builds up in the levels, blocking carbon fixation
How is photosynthesis similar in C4 plants and CAM plants?A. In both cases, the light reactions and the Calvin cycle are operated in both time and location. B. both types of plants make sugar without without the Calvin cycleC. In both cases, rubisco is not used to fix carbon initially.D. both types of plants make most of their sugar in the dark.
To synthesize one glucose molecule, the Calvin cycle uses_______Co2 molecules, ______ molecules of ATP, and ______ molecules of NADPH
Solar energy absorbed by pigment molecules drives low energy electrons from water to NADPH. Light driven electron flow also generates ATP by chemiosmosis. NADPH and ATP both store chemical energy, used I Calvin cycle to reduce CO2 to sugar.
Identifying components that are shared by both organelles and indicate which side of membrane has higher H+ concentration.
Both organelles have electron transport chains that pump H+ into membrane-bound compartment as well as ATP syntheses. Higher H+ concentration is found in inter-membrane space of the mitochondria and in thylakoid space of chloroplast.

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A. where do the electrons come from?B. How do electrons get their high potential energy?C. What picks up the electrons at the end of the chain? D. How is energy released as electrons are transferred down the electron transport chain used?
A. comes from food moleculesB. electrons have high potential energy in the bonds in organic molecules.C. electrons flow from water to reaction center chlorophyll in photosystem II to chlorophyll in photo I to NADPH, reducing to NADPH.D. energy is released by redox reactions in electron transport is used to trans H+ across membrane. Flow of H+ down concentration gradient back to ATP synthase and drives phosphorylation of ADP to make ATP.
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Fundamentals of Biochemistry: Life at the Molecular Level5th EditionCharlotte W. Pratt, Donald Voet, Judith G. Voet
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