Consider an Actin Subunit That Has Just Been Incorporated into an Actin

question 74

Multiple Choice

Consider an actin subunit that has just been incorporated into an actin filament at the leading edge of a lamellipodium. Before its ATP is hydrolyzed, how does its distance from the leading front edge of the plasma membrane change over time? How does its distance from the F-actin minus end change over time?

• A) Decreases; decreases
• B) Decreases; remains constant
• C) Decreases; increases
• D) Increases; decreases
• E) Increases; remains constant

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Definitions:

Systematic Desensitization

A behavioral therapy technique used to reduce phobic responses and anxiety by gradually exposing the subject to the feared object or situation in a controlled manner.

Visual Images

Pictures or representations in a person's mind or produced by imagination.

Free-Floating Anxiety

A general feeling of uneasiness or anxiety that is not related to any specific object or situation.

Systematic Desensitization

A therapeutic technique aimed at reducing anxiety or phobias through gradual exposure to the feared object or situation combined with relaxation exercises.