Archives: Questions and Answers

Yeast is a facultative anaerobe. What does that mean?

E.coli is present in the colon. Is the statement true or false?

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.

What is the difference between obligate adaptations and facultative adaptations? Please give an example of the contrast.

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