What are the roles of ATP and NADPH in photosynthesis? a. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce sugars. b. ATP and NADPH are forms of chemical energy produced from the light independent reactions, to be used in the light dependent reactions that produce sugars. c. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce proteins. d. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that use sugars as reactants

What are the roles of ATP and NADPH in photosynthesis? a. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce sugars. b. ATP and NADPH are forms of chemical energy produced from the light independent reactions, to be used in the light dependent reactions that produce sugars. c. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce proteins. d. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that use sugars as reactants

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter5: Photosynthesis

Section: Chapter Questions

Problem 2RQ: What two products result from photosynthesis? a. water and carbon dioxide b. water and oxygen c....

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The denaturation temperature of rubisco in a certain plant was determined to be 76.2 degrees Celsius. What happens to the rate of photosynthesis if the temperature continues to increase? A. The rate of photosynthesis will increase. B. The rate of photosynthesis will decrease. C. The rate of photosynthesis will remain the same. D. The rate of photosynthesis will decrease, then increase.
Which statement about the light reactions of photosynthesis and cellular respiration is correct? a. Both reactions occur in the cell cytoplasm b. plants do not require mitochondria because they produce ATP via photosynthesis c. ATP is produced as a result of the actions of an electron transport chain in both processes d. Light reactions and cellular respiration produce the same waste products e. the final electron acceptor in the light reactions is oxygen
Which 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.
What happens when light hits the pigments, P680 and P700. during the light-dependent reactions? A. Excited electrons are passed to electron acceptors B. Glucose is produced C. Carbon fixation occurs D. Electrons are fused to form ATP
Which of the following is true of light-independent reactions of photosynthesis? Select all that apply. a. Light-independent reactions occur in the stroma. b. Water molecules are split during light-independent reactions. c. Chlorophyll absorbs energy from sunlight. d. Carbon dioxide is necessary for light-independent reactions.
Ribulose bisphosphate carboxylase, which might be the most abundant enzyme on Earth, is part of which photosynthetic reaction? A. the Hill reaction B. the light-independent reaction C. photosystem II D. the light-dependent reaction E. photosystem I
Compare photophosphorylation and oxidative phosphorylation. How is chemiosmosis in chloroplasts different from chemiosmosis in mitochondria? a. Chemiosmosis is used in chloroplasts to transfer chemical energy from organic molecules to ATP. b. In mitochondria, light is transformed into ATP using photosystems I and II. c. Chemiosmosis in mitochondria occurs across an intra-organelle membrane, where it does not in chloroplasts. d. In chloroplasts, the high-energy electrons come from water.
What is the overall outcome of the light reactions in photosynthesis? NADPH and ATP molecules are produced during the light reactions and are used to power the light independent reactions. NADPH and ATP molecules are produced during the light reactions, which are used to power the light dependent reactions. Sugar and ATP are produced during the light reactions, which are used to power the light independent reactions. Carbon dioxide and NADPH are produced during the light reactions, which are used to power the light dependent reactions.
A group of scientists wants to test the effect of different wavelengths of light on plant photosynthesis. They have 3 treatment groups: red light, green light, and no light. They choose red light because chlorophyll has been shown to absorb red light. They choose green light because chlorophyll has been shown to reflect green light. They choose no light as a negative control to examine the rate of photosynthesis in the absence of light. To measure photosynthetic rate, the scientists use sensors to measure oxygen production of plants exposed to the different light treatments. Choose the best scientific hypothesis: O Photosynthesis is a critical process for plants, and it is of great importance that we understand how it is impacted by different wavelengths of light. O If rate of oxygen production is higher under red light than it is under green light or no light, it proves that red light has the largest effect on photosynthesis. O Because chlorophyll absorbs red light, rate of oxygen…
In which parts of the Calvin cycle are high energy phosphate groups donated by ATP to boost the energy of reactions? A. formation of G3P and regeneration of RuBP B. regeneration of RuBP and synthesis of PGA C. synthesis of PGA and oxidation of NADPH D. oxidation of NADPH and formation of G3P
Determine the order of the steps in photosynthesis and how they are interconnected. a. Light-Dependent Reactionsb. Calvin Cycle (Light-Independent Reactions)
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