Question

____ is the building up complex materials from simple ones such as food and oxygen and requires energy, while _____ is the breaking down of substances from complex to simpler ones.
o anabolism, catabolism
o metabolism, catabolism
o catabolism, anabolism
o anabolism, metabolism

Explanation:

Anabolism builds complex materials from simple ones using energy. Catabolism breaks down substances from complex to simple. Metabolism is the overall set of chemical processes in an organism. So the correct terms for building - up and breaking - down are anabolism and catabolism respectively.

Answer:

A. anabolism, catabolism