Questions and Answers

Select the correct answer. The term facultative anaerobe refers to an organism that: A) uses oxygen or grows without oxygen. B) requires less oxygen than is present in air. C) prefers to grow without oxygen. D) is killed by oxygen.

Human beings depend on oxygen to sustain life. However, at the cellular level, muscle cells are A) aerobics B) strict anaerobes C) capable of alcoholic fermentation D) facultative anaerobes