Which statement defines a coenzyme?
a. A unit consisting of an enzyme bound to reactants plus ATP
b. An organic molecule required for the functioning of an enzyme
c. The small, active part of an enzyme that binds to the organic reactants
d. An inactive enzyme that becomes functional upon contact with specific cofactors
e. An enzyme precursor
ANS: B
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To reduce the risk of neural tube defects in infants, the diet should contain adequate amounts of
A. vitamin C. B. iron. C. calcium. D. folic acid.
Which of the heart chambers is the most muscular?
A. left atrium B. right atrium C. left ventricle D. right ventricle
A ____ resolves differences in the appropriations bills passed by the two houses of Congress
a. compromise agreement b. reconciliation bill c. caucus bill d. continuing resolution
Several dietary patterns have been shown to reduce the risk of cardiovascular disease, obesity, and _____ compared to Western-style dietary patterns
a. lupus b. multiple sclerosis c. rheumatoid arthritis d. type 2 diabetes e. type 1 diabetes