Archaea have very diverse environmental requirements and tolerances. From what you have learned about them, which among the following conditions or substances do ALL archaeans require for survival and reproduction?

A. oxygen
B. water
C. moderate pH
D. moderate temperature
E. moderate salinity


B. water

Biology & Microbiology

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Which is/are true regarding organic acids?

A. They are weak acids. B. They are often involved in metabolic reactions. C. They often exist in the ionized form at the near-neutral pH found in a cell. D. Pyruvate and pyruvic acid refer to different forms of the same substance. E. All of the choices are true.

Biology & Microbiology

Starting with one molecule of glucose, the energy-containing products of glycolysis are _____

A) 2 NAD+, 2 pyruvate, and 2 ATP B) 2 NADH, 2 pyruvate, and 2 ATP C) 2 FADH2, 2 pyruvate, and 4 ATP D) 6 CO2, 2 pyruvate, and 2 ATP

Biology & Microbiology

The megaspore divides mitotically, resulting in a female gametophyte or embryo sac that differentiates into an egg and a central cell with two nuclei called the

What will be an ideal response?

Biology & Microbiology

Which molecules are the products of aerobic respiration?

What will be an ideal response?

Biology & Microbiology