Keratinocytes are an important epidermal cell because they ________.
A) produce a fibrous protein that gives the skin much of its protective properties
B) are able to transform from living cells to plasma membranes and still function
C) are able to reproduce sporadically as needed
D) are a powerful defense against damaging UV rays
A) produce a fibrous protein that gives the skin much of its protective properties
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Larger species have more cells, not ____________________ cells
Fill in the blank(s) with correct word
Glycolysis and aerobic respiration collectively produce up to ________ ATP per glucose, whereas anaerobic fermentation produces ________.
A. 2; about the same, varying from one tissue to another B. 32; none C. 32; 36 D. 32; 2 E. 36; about the same, varying from one tissue to another
Troponin
A. has two subunits. B. is part of the myosin myofilament. C. is a long, flexible protein. D. has a calcium-binding site. E. binds to ATP.
Why is the external urinary sphincter under conscious control?
A. It is made of smooth muscle. B. It is part of the detrusor muscle. C. It is made of skeletal muscle. D. It is made of adventitia.