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:

Negative Reinforcement

A behavioral principle where the removal of an unfavorable event following a response increases the likelihood of that response being repeated in the future.

Positive Reinforcement

A technique in behavior modification that involves the addition of a rewarding stimulus following a desirable behavior, aiming to increase the likelihood of the behavior's occurrence.

Punishment

The imposition of a penalty as retribution for an offense, or the action of disciplining someone to correct or deter undesirable behavior.

Temporary Effect

A short-term result or consequence that fades over time without long-lasting implications.