This functional group forms bridges that help stabilize protein quaternary structure:a
hydroxyl
b. carbonyl
c. amino
d. phosphate
e. sulfhydryl
E
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Which of the following is the best description of the form of an exoskeleton?
a. spines extending from the surface b. plates under the skin c. hollow, rigid tubes d. interior columns e. fluid-filled bags
If you radioactively labeled antidiuretic hormone (ADH), where would you expect to find the radioactivity after the hormone had been allowed to circulate?
A. pancreas B. mammary glands C. testes D. kidneys E. ovaries
Cyclins modulate the progression of cells through the cell cycle by directly
A) activating G proteins. B) phosphorylating growth factor receptors. C) activating protein kinases that are critical regulators of cell division. D) degrading histones. E) turning on genes necessary for DNA replication.
What are leukocidins?
A) Molecules that are capable of destroying phagocytes B) Molecules that can degrade IgA C) Molecules that destroy the complement proteins