Question

28.) Which of the following statements best describes the relationship between photosynthesis and respiration?

Select one:

a. Respiration runs the biochemical pathways of photosynthesis in reverse.

b. Photosynthesis stores energy in organic molecules; respiration releases energy from organic molecules

c. Photosynthesis occurs only in plants; respiration occurs only in animals.

d. ATP molecules are produced in photosynthesis but not in aerobic respiration.

e. Photosynthesis is catabolic; respiration is anabolic.

29.) Which of the following statements is true about enzyme-catalyzed reactions?

Select one:

a. The reaction is faster than the same reaction in the absence of the enzyme.

b. The free energy change of the reaction is opposite from the reaction that occurs in the absence of the enzyme.

c. An enzyme catalyzes a reaction by raising the activation energy.

d. Enzyme-catalyzed reactions require energy to activate the enzyme.

e. Enzyme-catalyzed reactions release more free energy than noncatalyzed reactions.

Answer 1

28B. Photosynthesis stores energy in organic molecules; respiration releases energy from organic molecules.

Photosynthesis is the process in which food is prepared by the green plants. Thus chemical energy is stored in glucose.The energy is released in the process of respiration.

29a. The reaction is faster than the same reaction in the absence of the enzyme.

Enzymes reduce the activation energy of the reaction hence enzyme catalyzed reaction is always faster than the uncatalyzed one.