Dialysis uses the process of ________.
A. secondary active transport
B. facilitated diffusion
C. primary active transport
D. simple diffusion
Answer: D
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The smallest structural unit that exhibits the characteristics of living things is
A. an organ.?B. an individual.?C. tissue.?D. a cell.?E. a system.
What effect does glucagon have on protein metabolism?
A. It directly stimulates catabolism of proteins. B. It stimulates the buildup of proteins from amino acids. C. It increases absorption of amino acids in the intestine. D. It has no effect on body proteins.
By weight, which element is the most plentiful in the human body?
A) sulfur B) sodium C) oxygen D) potassium E) carbon
Which of the following muscles is NOT involved in mastication?
A) frontalis B) masseter C) temporalis D) lateral pterygoid