Paracrine Signals Bind to

question 236

Multiple Choice

Paracrine signals bind to

• A) receptors on the cell that produced them.
• B) receptors on cells far away from the cell that produced them.
• C) receptors on adjacent cells.
• D) internal receptors located inside cells.
• E) receptors on neighboring cells.

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Definitions:

ATP

Adenosine triphosphate, a molecule that provides energy for many processes within living cells.

Extracellular Matrix

A complex network of proteins and carbohydrates surrounding cells, providing structural and biochemical support to surrounding cells.

Facilitated Diffusion

A process of passive transport, facilitated by transport proteins, allowing molecules to move across cell membranes along a concentration gradient without energy expenditure.

Active Transport

The movement of substances across cell membranes against their concentration gradient, requiring energy.