Ca2+-calmodulin stimulates phosphorylation of myosin by

A) Ca2+-ATPase.
B) focal adhesion kinase.
C) myosin light chain kinase.
D) ryanodine receptor.
E) titin.


Answer: C

Biology & Microbiology

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Luminescence

A. is catalyzed by luciferase. B. may be controlled by quorum sensing. C. may be produced by bacteria. D. All of the choices are correct.

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Approximately what percent of the water that enters a plant is lost by transpiration?

a. 5 b. 10 c. 25 d. 50 e. 95

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Superantigens are

A. bacterial toxins that activate T cells at a 100 times greater rate than other antigens. B. cell markers found in some member of a species but not in other members. C. body tissues that the immune system mistakes as foreign. D. antigens that evoke allergic reactions.

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