Rainbow Trout Use Acetylcholinesterase to Break Down the Neurotransmitter Acetylcholine

question 201

Multiple Choice

Rainbow trout use acetylcholinesterase to break down the neurotransmitter acetylcholine.Researchers measured the rate at which this happened at 17°C and after the fish was acclimatized to 2°C.Their results showed that the rate was close to the same at both temperatures.Which is the most likely explanation for this result?

• A) The enzyme has a narrow range of temperatures over which it can function.
• B) The fish is unable to break down acetylcholine when it is at temperatures between 2°C and 17°C.
• C) The fish normally lives in cold water but is able to survive in warmer water.
• D) The fish is able to make two variant forms of the enzyme.
• E) Isozymes for the enzyme exist that are identical in structure but that function at different temperatures.

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Definitions:

Transfer Payments

Money distributed from one entity to another without an exchange of goods or services, e.g., social security benefits.

Distribution Of Income

The way in which a nation’s total income is distributed among its population, affecting economic disparity and wealth distribution.

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The extent to which income is distributed in a relatively equal manner among the population.

Two-Year Data

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