Imagine a Hypothetical Pathway in Which Precursor X and Precursor

question 45

Multiple Choice

Imagine a hypothetical pathway in which precursor X and precursor Y are combined by enzyme Z in order to produce neurotransmitter XYZ. You observe that as levels of XYZ increase in the cytoplasm, the activity of enzyme Z slows down. This is an example of

• A) positive feedback.
• B) feedback inhibition.
• C) retrograde transport.
• D) anterograde synthesis.
• E) a rate limiting step.

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Definitions:

Thrift Institutions

Savings and loan associations, mutual savings banks, and credit unions, primarily engaged in accepting savings deposits and making mortgage and other loans.

Government Securities

Financial instruments issued by the government to finance its expenditures, promising to pay back with interest.

Excess Reserves

Capital reserves held by banks that surpass the minimum reserve requirements, providing liquidity and stability to the banking system.

Money Supply

The total quantity of monetary assets available in an economy at a specific time, including notes, coins, and balances held in checking and savings accounts.