Question

Plants and animals need energy in order to live. Which of the following statements about the conversion of food energy into other forms of energy is true?
A.
Plant and animal cells require oxygen to properly break down food molecules.
B.
Sunlight is required to break down food in plants and animals.
C.
The process takes place in the chloroplasts of plant and animal cells.
D.
all of these

Answer 1

A.

Explanation: Breaking down food to release energy is cellular respiration, which in plant and animal cells is carried out mainly in mitochondria and typically requires oxygen (aerobic respiration). Sunlight is needed for photosynthesis (making food), not for breaking it down, and chloroplasts are the site of photosynthesis, not respiration.