Describe how proteins are processed and released from cells

Proteins travel to the Golgi Apparatus where they are modified (e.g. glycosylation) and packaged into vesicles. Vesicles then travel to, and fuse with, the cell surface membrane. This causes the release of proteins by the cell in a process called exocytosis, which is an active process requiring the hydrolysis of ATP.

SH

Related Biology A Level answers

All answers ▸

Describe how oxygen in the air reaches the capillaries surrounding the alveoli.


Starch is made from two alpha-glucose polymers, amylose and amylopectin. Which is quicker to break down and why?


Explain how pressure differences in the heart ensure sufficient pumping of blood into the arteries. (3)


Describe the mechanism of the polymerase chain reaction.