What is "allosteric modulation"?

A. regulation of physiological functions by the sympathetic division of the autonomic nervous system
B. modification of the functional state of a protein by temperature or pH
C. the change in the shape and functional state of a protein that occurs when a ligand binds to a regulatory site
D. the fact that all binding sites on a protein must be occupied to have a biological effect
E. the ability of a single ligand-binding site to bind to molecularly similar ligands


C

Anatomy & Physiology

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A. Vasomotor B. Vasodilation C. Vasoconstriction D. Vasopressor

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LH stimulates the thecal cells to synthesize progesterone during the follicular phase

Indicate whether the statement is true or false

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Changes in blood pressure are detected by ________ in certain arteries.

A. mechanoreceptors B. chemoreceptors C. nociceptors D. proprioceptors E. thermoreceptors

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Down syndrome is due to an extra

A. X chromosome. B. autosome. C. Y chromosome. D. X chromosome or an extra Y chromosome.

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