Two mobile electron carriers that are important for the electron transfer system are cytochrome c and coenzyme Q

a. True
b. False


ANSWER: True

Biology & Microbiology

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Which of the following items are typically irradiated in order to kill microbes?

A. Operating room air B. Human tissues such as heart valves and skin C. Surgical gloves D. Cured meats E. All of the choices are correct.

Biology & Microbiology

Human embryos have a developmental stage during which they have a tail and pharyngeal pouches (those pouches develop into gills in fish). How can we explain these characteristics of human embryos?

A) Human embryos need a tail and gills to breathe during development in the placenta. B) Human embryos spend time in the water where tails and gills are useful. C) Human embryos share a common ancestor who had gills. D) Both A and B are correct.

Biology & Microbiology

The major purpose of a pair bond is to form a stable relationship for the purpose of:

a. securing food. b. defending territory. c. kin selection. d. mating and caring for young. e. selection of a mate.

Biology & Microbiology

All of the following are parts of a nucleotide EXCEPT:

A) a phosphate group B) a five-carbon sugar C) a six-carbon sugar D) a nitrogenous base

Biology & Microbiology