Which of the Following Is True of Integral Membrane Proteins

question 17

Multiple Choice

Which of the following is true of integral membrane proteins?

• A) They lack tertiary structure.
• B) They are loosely bound to the surface of the bilayer.
• C) They are usually transmembrane proteins.
• D) They are not mobile within the bilayer.
• E) They serve only a structural role in membranes.

---

Definitions:

Axon

A thin, extended part of a neuron responsible for transmitting electrical signals from the neuron’s cell body to other neurons or muscles.

Dendrites

Branch-like extensions of neurons that receive signals from other neurons and are crucial for neural communication.

Neurons

The fundamental cells of the brain and nervous system responsible for receiving sensory input from the external world, transmitting this input, and sending motor commands to muscles.

Endocrine System

A network of glands in the body that secrete hormones into the bloodstream to regulate various body functions such as growth, metabolism, and mood.