The portion of an amino acid that makes the amino acid unique among the 20 different amino acids is

A. carboxyl
B. amino
C. hydrocarbon
D. the side chain or R-group
E. peptide bonding


D. the side chain or R-group

Biology & Microbiology

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The final characteristics of beer such as color, flavor, and foam primarily depend on the

A. roasted malt. B. adjuncts. C. wort. D. whey.

Biology & Microbiology

When an atom becomes an ion, which property changes the most?

a. atomic number b. atomic mass c. charge d. half-life

Biology & Microbiology

In populations, adaptation usually arises through

a. natural selection. b. heredity. c. development. d. metabolism. e. responsiveness.

Biology & Microbiology

Enzymes known as lyases participate in ________ reactions

A) anabolic B) catabolic C) both anabolic and catabolic D) neither anabolic nor catabolic E) oxidation-reduction

Biology & Microbiology