Enzymes are ____ catalysts
a. protein
b. lipid
c. nucleic acid
d. inorganic
e. ionic
ANSWER: a
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Polygenic traits are
A) determined by a single gene. B) determined by more than one gene. C) phenotypically different in different organisms. D) associated with many symptoms.
Which of the following will decrease blood pressure?
a. increasing heart rate b. increasing stroke volume c. increasing vessel diameter d. increasing stress
All steroids have ____
a. the same number of double bonds b. double bonds in the same positions c. four carbon rings d. the same functional groups e. the same number and positions of double bonds
The glucose-facilitated diffusion transporter can transport glucose
a. into the cell only. b. out of the cell only. c. into or out of the cell. d. only in the presence of ATP.