An active site of an enzyme is
A) the part of an enzyme that combines with a substrate.
B) the part of a substrate that combines with an enzyme.
C) a sequence of DNA nucleotides that encodes a protein molecule.
D) the part of the enzyme that binds ATP.
A
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During a(n) ____________________ isotonic contraction, the contraction resists the stretching of the muscle
Fill in the blank(s) with correct word
Identify the correct descriptions of fibrous joints.
A. united by cartilage B. united by fibrous tissue C. classified functionally as diarthroses D. having a limited range of motion E. having no joint cavity F. possessing a joint cavity
What neurotransmitter is released by all parasympathetic neurons?
A) acetylcholine B) epinephrine C) norepinephrine D) dopamine E) serotonin
Which is true about the composition of organic molecules?
A. They always contain oxygen. B. They always contain carbon. C. They are always macromolecules. D. They never contain hydrogen. E. They never contain oxygen.