Acetylcholinesterase is an enzyme that catalyzes the breakdown of the neurotransmitter acetylcholine. which of the following explains why acetylcholinesterase cannot be used to catalyze the breakdown of other neurotransmitters, like norepinephrine? a. it would require a level of activation energy too high for acetylcholinesterase to react with other neurotransmitters. b. binding with an alternate neurotransmitter would inhibit the reaction of the enzyme with acetylcholine.

Brain chemicalsterase is an enzyme that help produces the breakdown of the brain chemicalbrain chemical. Which of the following explains why 
brain chemical sterase cannot be used to help produce the breakdown of other brain chemicals,like nor epinephrine? A. It would require a level of (stimulation of action/making active and effective) energy too high for brain chemicalsterase to react with other brain chemicals. B.Binding with an alternate brain chemical would stop the reaction of the enzyme with brain chemical.
the answer is
letter A
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What is the difference between cytokinesis in plant and animal cells? animal cells dived by a cleavage furrow. plant cells divide by a cell plate that eventually becomes the cell wall. cytoplasm and cell membranes are necessary for cytokinesis in both plant and animals.

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it