Proteins are polymers formed of structural units called:
A. nucleotides.
B. fatty acids.
C. monosaccharides.
D. phosphate groups.
E. amino acids.
Answer: E
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In glycolysis, the product(s) of the enzyme aldolase is (are)
A) beta-hydroxy carbonate. B) dihydroxyacetone phosphate. C) glyceraldehyde-3-phosphate. D) choices A and B only E) choices B and C only
Water is neither hydrophilic nor hydrophobic, as these terms only define the interaction of other molecules with water molecules.
a. true b. false
Objective evidence of disease as noted by an observer is called
A) a sign. B) a symptom. C) a syndrome. D) prodromal.
How does resistance to drugs spread in bacterial populations?
A. Exposure to drugs causes mutations in bacterial genes. B. Horizontal gene transfer between bacteria spreads R (resistance) plasmids. C. Genetic recombination during sexual reproduction. D. Exposure to drugs induces immunity. E. Exposure to drugs alters gene expression in bacteria.