Many Physiological Conditions Are Related to Particular Proteins in Cell

question 6

Multiple Choice

Many physiological conditions are related to particular proteins in cell membranes. The number of insulin receptors in membranes is related to the amount of insulin present around those cells. If the presence of increased insulin results in a decrease in receptors and a decrease in insulin results in an increase in insulin receptors, this would be an example of

• A)a metabolic pathway.
• B)negative or regulatory feedback.
• C)passive transport.
• D)competitive inhibition.

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Definitions:

Synovial Membrane

A soft tissue lining the space inside synovial joints, producing synovial fluid to lubricate and nourish the cartilage and bones in the joint cavity.

Fibrous Capsule

A dense connective tissue layer that encloses certain organs, providing support and protection.

Double Layer

A concept referring to structures with two layers, often used in the context of biological membranes which consist of two layers of phospholipids.

Periosteum

The dense layer of connective tissue enveloping bones except at the surfaces of the joints.