Evidence Strongly Suggests That the Bent Conformation of an Integrin

question 9

Multiple Choice

Evidence strongly suggests that the bent conformation of an integrin is _______ and unable to bind its ligand.

• A)loose
• B)active
• C)tight
• D)stretched
• E)inactive

---

Definitions:

Secretory Vesicle

Membrane-bound vesicles produced by cells to store and transport substances (like hormones or neurotransmitters) that are to be secreted.

Exocytosis

A process by which a cell transports molecules out of the cell by vesicle fusion with the plasma membrane.

Lysosome

A membrane-bound cell organelle that contains digestive enzymes and breaks down excess or worn-out cell parts, food particles, and invading viruses or bacteria.

Active Transport

The passage of molecules over a cell's membrane, moving from an area of decreased concentration to an area of increased concentration, an endeavor that utilizes energy.