In Cells That Are Constantly Involved in Secretion, an Equivalent

question 45

Multiple Choice

In cells that are constantly involved in secretion, an equivalent amount of membrane must be returned to the interior of the cell for each vesicle that fuses with the plasma membrane; if this does not occur, then what would happen?

• A) The ratio of cell surface would decrease, compared to cell volume.
• B) The cell surface would shrivel.
• C) The surface area would remain constant.
• D) The number of membrane receptor proteins would decrease.
• E) The cell surface will keep expanding.

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Definitions:

Deficit Principle

A concept indicating that the less frequently a reward is available or the less a need is satisfied, the more value or desirability that reward or satisfaction of the need has.

Self-Actualisation Needs

The highest level in Maslow's hierarchy of needs, representing the fulfillment of one's potential and the realization of one's abilities and talents.

Maslow's Hierarchy

A psychological theory proposing that humans have five levels of needs, ranging from basic physiological needs to self-actualization, that motivate their behavior.