Embedded in the Plasma Membrane of Cells, Cholesterol Molecules Act

question 67

Multiple Choice

Embedded in the plasma membrane of cells, cholesterol molecules act to

• A) stabilize the membrane.
• B) make the membrane more resistant to freezing.
• C) destabilize the membrane, leading to heart attacks.
• D) participate in pinocytosis.
• E) allow water to easily pass through the plasma membrane.

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Definitions:

Rib

A long, curved bone surrounding the chest cavity that protects the heart and lungs and serves as attachment for chest muscles.

Vertebra

One of the individual bones that form the vertebral column in vertebrates, providing structural support and protecting the spinal cord.

Intervertebral Foramen

The opening between adjacent vertebrae through which spinal nerves exit the spinal column.

Spinal Nerves

Nerves that originate from the spinal cord and branch out to various parts of the body, carrying messages to and from the brain.