Question

List and describe the key roles/functions of membrane proteins. [Knowledge, Comprehension]

Answer 1

Membrane proteins have key roles/functions such as serving as anchors, enzymes, receptors, and transporters. They play a crucial role in various functions of the plasma membrane.

Step-by-step explanation:

Key Roles/Functions of Membrane Proteins:

1. Extra-cellular matrix & cytoskeletal anchors
2. Enzymes (e.g. ET complexes, F1 ATP synthase)
3. Receptors (e.g. hormone, cell-recognition)
4. Passive transporters (facilitated diffusion)
5. Active transporters (ion pumps)

Membrane proteins play a crucial role in various functions of the plasma membrane. They act as anchors, enzymes, receptors, and transporters. Examples include receptors for hormones or neurotransmitters, antibodies of the immune system, and enzymes that catalyze crucial reactions in cells.