Practice!

Sample Problem

ATP  (Check all that apply)

(A) is made from an ADP and phosphate

(B) requires more energy to break down than to synthesize

(C) stores energy for immediate use to perform cellular work

(D) is only made during aerobic respiration and not anaerobic respiration

Solution

(A) and (C) are the correct answers. ATP requires energy to form, not to breakdown (B). It is made in both aerobic and anaerobic respiration (D). Remember, both types of respiration begin with glycolysis, which generates a net of 2 ATP.