Binding of a Signaling Molecule to Which Type of Receptor

question 55

Multiple Choice

Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of substances on opposite sides of the membrane?

• A) intracellular receptor
• B) G protein-coupled receptor
• C) phosphorylated receptor tyrosine kinase dimer
• D) ligand-gated ion channel

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Definitions:

Platelets

A type of blood cell that helps prevent bleeding by forming clots.

Lymph

A clear fluid that circulates through the body via lymphatic vessels, carrying white blood cells and removing bacteria and other waste products.

Plasma

The liquid component of blood in which blood cells are suspended, consisting mostly of water and proteins.

Agglutination

The clumping together of particles, typically cells or proteins, that occurs when an antigen is mixed with its corresponding antibody.