Question

1. which statement best describes one of the events taking place in the chemical reaction below? h₂o + atp → adp + p + energy a. energy is being stored as a result of aerobic respiration. b. fermentation is taking place, resulting in the synthesis of atp. c. energy is being released for metabolic activities. d. photosynthesis is taking place, resulting in the storage of energy. 5. the main result of aerobic respiration is the a. conversion of radiant energy into chemical energy b. production of lactic acid as an end - product c. storage of energy in a polysaccharide d. production of atp from the breakdown of glucose 6. photosynthesis is the process by which a. the potential energy of simple sugars is transferred to atp molecules b. simple sugars are gradually broken down to form lactic acid or alcohol c. two simple sugar molecules combine to form maltose and water d. light energy is converted into the chemical energy of simple sugars 7. most of the oxygen gas present in the atmosphere is produced as a result of a. photosynthesis b. cellular respiration c. dehydration synthesis d. decomposition

Explanation:

1. The reaction shows ATP being hydrolyzed to ADP and phosphate with energy release for metabolic use. Aerobic respiration stores energy in ATP, not releases it like this reaction. Fermentation and photosynthesis are not related to this ATP - hydrolysis reaction.
2. Aerobic respiration breaks down glucose to produce ATP. Radiant energy conversion is photosynthesis, lactic acid production is fermentation, and energy storage in polysaccharides is not the main result of aerobic respiration.
3. Photosynthesis converts light energy into the chemical energy of simple sugars. Transfer of energy from simple sugars to ATP is cellular respiration, breakdown of simple sugars to lactic acid or alcohol is fermentation, and combination of simple - sugar molecules is not photosynthesis.
4. Photosynthesis by plants, algae, and some bacteria produces oxygen gas as a by - product, which is the main source of atmospheric oxygen. Cellular respiration consumes oxygen, dehydration synthesis and decomposition do not produce significant amounts of atmospheric oxygen.

Answer:

1. C. Energy is being released for metabolic activities.
2. D. production of ATP from the breakdown of glucose
3. D. light energy is converted into the chemical energy of simple sugars
4. A. photosynthesis