Which of the following organisms is

responsible for the production of cheese,
yogurt, and sour cream?



a. Lactobacillus
b. Saccrharomyces
c. Clostridium
d. E. coli
e. more than one of these


A

Biology & Microbiology

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Select the choices that are characteristics of hormones.

A. travel in the bloodstream B. affect metabolism of cells with receptors to them C. are secreted by exocrine glands D. can act at a distance between body parts

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Which of the following characteristics of steroid hormone receptors are shared by both type I and type II receptors?

A. The receptor is always located in the nucleus. B. The receptor only binds to the response element when bound by hormone. C. The direct binding of hormone is required for transcriptional activation. D. All of the choices are correct.

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Which of the following is associated with the citric acid cycle?

a. ATP synthase b. FADH 2 c. oxygen d. ADP

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An abrupt and transient change in membrane potential is called a(n)

a. electrical potential. b. refractory potential. c. threshold potential. d. resting potential. e. action potential.

Biology & Microbiology