Some Kinases Can Affect the Activity of an Enzyme by the Addition

question 234

Multiple Choice

Some kinases can affect the activity of an enzyme by the addition of phosphate groups, which can then be removed, much like an "on/off" switch.These modifications are an example of

• A) feedback inhibition.
• B) phosphatase activity.
• C) reversible phosphorylation.
• D) noncovalent regulation.
• E) allosteric regulation.

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Definitions:

Homeostatic

Pertaining to homeostasis, which is the self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival.

Hypothalamus

A region of the brain that plays a crucial role in many essential functions, including regulating temperature, hunger, and thirst.

Hungry

A sensation experienced when one's body signals the need for food intake.

Thirsty

The feeling of needing to drink liquids, often as a result of dehydration or the desire for refreshment.