The PER and TIM Proteins Accumulate During the Day Until

question 44

Multiple Choice

 The PER and TIM proteins accumulate during the day until they cause sleepiness. What prevents them from continuing to accumulate at night?

• A) Metabolic rates increase at night, so proteins are digested faster than they can be synthesized.
• B) The high levels of melatonin present at night react with the proteins to disable them.
• C) The proteins are unstable at the lower body temperatures that are typical at night.
• D) When the proteins reach a high level, they turn off the genes that produce them.

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Definitions:

Net Disbursement Float

The time difference between when a check is issued by a company and when the funds are actually withdrawn from the company's bank account.

Outstanding Checks

Checks that have been written and recorded in the account ledger but not yet cashed or cleared by the bank.

Availability Delay

The delay between the time a deposit is made into a bank account and the time those funds become accessible.

Mailing Time

The duration between when a mailpiece is sent and when it is received.