Processes

Question 1

Describe the process of exocytosis.

Answer 1

Vesicles move to the cell surface membrane, fuse with it, and release contents outside the cell using energy from ATP.

Question 2

Explain how proteins synthesized in ribosomes reach the cell surface membrane.

Answer 2

Synthesized in RER → modified in cisternae → packed into transport vesicles → sent to the Golgi body for further modification → packed into Golgi vesicles → moved to the membrane and released by exocytosis