58. How is photosynthesis similar in C4 plants and CAM plants? Group of answer choices a. In both cases, rubisco is not used to fix carbon initially. b. Both types of plants make most of their sugar in the dark. c. Both types of plants make sugar without the Calvin cycle. d. In both cases, only photosystem I is used.

58. How is photosynthesis similar in C4 plants and CAM plants? Group of answer choices a. In both cases, rubisco is not used to fix carbon initially. b. Both types of plants make most of their sugar in the dark. c. Both types of plants make sugar without the Calvin cycle. d. In both cases, only photosystem I is used.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter6: Where It Starts-photosynthesis

Section: Chapter Questions

Problem 15SA: Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2...

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What is the significance that the combined absorption spectra of chlorophylls a and b roughly match the action spectrum of photosynthesis? Would photosynthesis be more efficient if their individual absorption spectra coincided exactly?
Where is chlorophyll located in the chloroplast? (a) thylakoid membranes (b) stroma (c) matrix (d) thylakoid lumen (e) between the inner and outer membranes
In ________, 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) photophosphorylation
In C3 plants, _______ makes sugar production inefficient when stomata close on hot, dry days. a. photosynthesis c. photorespiration b. photolysis d. carbon fixation
Where in plant cells does the Calvin cycle take place? a. thylakoid membrane b. thylakoid space c. stroma d. granum
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 function
Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of photosynthesis by exposing the green alga Chlorella to CO2 labeled with the radioisotope carbon 14. By looking at which compounds the C14 ended up in, they were able to identify all intermediates in this cyclic pathway. Why did they predict correctly that the same set of intermediates would be formed in the light reaction in land plants?
44. What does light do when it strikes the chlorophyll molecules of Photosystems I and II? Group of answer choices a. Light causes glucose to be synthesized directly inside the chlorophyll molecules of photosynthesis. b. Light causes the conversion of water into carbon dioxide, oxygen and electrons. c. Light directly causes the carbon dioxide to attach to RuBP during the carbon fixation stage of the Calvin Cycle. d. Light causes electrons to get excited and travel down an electron transport chain embedded in the thylakoid membrane.
45. Which of the following statements about the light reactions of photosynthesis is NOT true? Group of answer choices a. The splitting of water molecules provides a source of electrons. b. Chlorophyll and other pigments absorb light energy, which excites electrons. c. ATP is generated by photophosphorylation. d. Electrons from water are given to the chlorophyll molecules of Photosystem I.
1. Which of the following does NOT happen during the light-dependent reactions of photosynthesis?A. ATP is producedB. Oxygen is producedC. NADPH is producedD. Glucose is produced 2. The overall source of energy for photosynthesis is:A. energy released when water is split, and oxygen is producedB. energy from NADPHC. light energy from the sun D. energy from ATP 3. John Dela Cruz grew algae in the presence of a poison that stops the lightindependent reactions of photosynthesis. As a result, which molecules will the light-dependent reactions stop producing?A. ADP and NADP+B. ADP and NADPHC. ATP and NADP+D. ATP and NADPH
The role of photosystem 1 and photosystem 2 in the process of photosynthesis is to a. absorb sunlight and distribute the energy as heat b. absorb sunlight and transfer the energy to electrons c. form ATP as hydrogen ions cross the thylakoid membrane d. transfer electrons to form NADPH
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.