What Would Happen If an Enzyme Inhibitor for the Enzyme

question 28

Multiple Choice

What would happen if an enzyme inhibitor for the enzyme phosphodiesterase (PDE) was applied to a vertebrate eye?

• A) The opsins found in cones would not be differentiated into the red, blue, and green proteins, causing the animals to be color blind.
• B) The cGMP-gated sodium channels would remain open, glutamate would be continuously discharged at the synapses, and the brain would not detect light absorbed by the rod cells.
• C) The lens could not be appropriately adjusted to focus light on the retina, resulting in either nearsightedness or farsightedness.
• D) All of the listed responses are correct.

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Definitions:

Cash

A form of liquid asset that represents immediate purchasing power and can be used for transactions.

Closing Entries

Journal entries made at the end of an accounting period to transfer temporary accounts' balances to permanent accounts, thereby resetting the temporary accounts for the next period.

Revenue Accounts

Accounts that track the income a company generates from its normal business activities, such as sales of goods or services.

Retained Earnings

The portion of a company's profits that is kept or retained rather than paid out as dividends to shareholders, often used for reinvestment in the business.