A Single Epinephrine Molecule Can Cause the Release of Thousands

question 48

Multiple Choice

A single epinephrine molecule can cause the release of thousands of glucose molecules from glycogen in a liver cell.Why is this a useful feature of this signal transduction pathway?

• A) Having multiple steps in a signal transduction pathway increases the complexity of the system.
• B) The body produces minimal amounts of epinephrine and circulates minimal amounts of this hormone in the blood.
• C) The liver cell synthesizes only the proteins needed for this signal transduction pathway and not others involved in pathways not active in the liver.
• D) The liver cell exhibits only on its surface receptors, such as the epinephrine receptor, that are needed for liver cell functions.
• E) More protein components present in a signal transduction pathway increase the chances for a problem to arise via a mutation event.

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Definitions:

First Items

The initial elements in a series or list, often given special attention due to their primacy position.

Anterograde Amnesia

An inability to form new memories.

New Memories

The process of forming and storing new information in the brain, which can involve converting short-term memories into long-term memories.

Inability

The state of lacking the power, means, or opportunity to accomplish a task or action.