Why Does Cholesterol Lower Membrane Permeability

question 22

Multiple Choice

Why does cholesterol lower membrane permeability?

• A)It is polar.
• B)It fills gaps in membranes and increases hydrophobic interactions.
• C)It participates in hydrogen bonding in the membrane interior.
• D)It is small relative to most phospholipids.

Understand the adaptive features of muscle structures to their functions.

Recognize and describe the components and organization of the vertebrate skeleton.

Understand the physiological differences between muscle types and their implications for movement and function.

Understand the role and function of neurotransmitters in nerve-muscle signaling.

---

Definitions:

Acetabulum

The socket in the hip bone that receives the head of the thigh bone to form the hip joint.

Greater Sciatic Notch

A deep notch in the ilium bone of the pelvis through which the sciatic nerve passes.

Sacro-Iliac Joint

A joint in the pelvic girdle, located where the sacrum meets the iliac bone of the pelvis, involved in transferring weight and movement between the upper body and legs.

Iliac Crest

The iliac crest is the top border of the ilium, one of the bones that make up the human pelvis.