28. What is the primary function of the Calvin cycle? a. use ATP to release carb

Question

28. What is the primary function of the Calvin cycle? a. use ATP to release carbon dioxide b. use NADPH to release carbon dioxide c. split water and release oxygen d. transport RuBP out of the chloroplast e. synthesize simple sugars from carbon dioxide 29. Which process is most directly driven by light energy? a. creation of a pH gradient by pumping protons across the thylakoid membrane b. carbon fixation in the stroma c. reduction of NADP+ molecules d. removal of electrons from chlorophyll molecules e. ATP synthesis 30.CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they a. fix CO2 into organic acids during the night. b. fix CO2 into sugars in the bundle-sheath cells. c. fix CO2 into pyruvate in the mesophyll cells. d. use photosystem I and photosystem II at night. 31.A cell releases a signal molecule into the environment, and shortly later a number of cells in the immediate vicinity respond. This is an example of a. hormonal signaling b. autocrine signaling c. paracrine signaling d. endocrine signaling e synaptic signaling

Explanation / Answer

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28) E) synthesize simple sugars from carbon dioxide,

29) E) ATP sunthesis

30) A) fix co2 into the organic acid during the night.

31) C) Paracrine signalling is a type of signlling in which a cell create a signal that affect nearby cells.

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