Question

Cellular respiration refers to _____.

A releasing cellular energy through secretion
B the synthesis of cellular materials
C breathing
D the breakdown of sugar molecules in food to release energy

Answer 1

D

Step-by-step explanation:

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Answer 2

D. The breakdown of sugar molecules in food to release energy.

Step-by-step explanation:

Cellular respiration is converting the glucose in your food to ATP in the mitochondria of the cell to produce energy for living.