Golgi body

Question 1

What is the Golgi body?

Answer 1

Made up of interconnected flattened membranous sacs

Question 2

Describe the structure of the Golgi body

Answer 2

Vesicles containing polypeptides pinch off from the RER and fuse with the Golgi body
Proteins are modified and packaged into vesicles
At the other end of the Golgi body, vesicles containing the modified proteins bud off

Question 3

What are the main 3 functions of the Golgi body?

Answer 3

Producing glycoprotein
Forming lysosomes
Modifying and packaging proteins (e.g. enzymes) into secretory vesicles for secretion

Question 4

What are the main 2 roles that the Golgi body has?

Answer 4

Transporting and storing lipids
Secreting carbohydrates (e.g. for the formation of plant cell walls)

Question 5

What are lysosomes?

Answer 5

Are single membrane-bound vesicles that contain hydrolytic (digestive) enzymes

Question 6

What produces lysosomes?

Answer 6

Golgi body

Question 7

What do lysosomes do?

Answer 7

Isolate the potentially harmful digestive enzymes from the remainder of the cell

Question 8

What are the 2 main functions of lysosomes?

Answer 8

Release hydrolytic enzymes when the cell needs to break down worn-out organelles
Digest material that has been taken into the cell
Example - lysosomes fuse with the vesicle made when a white blood cell engulfs bacteria by phagocytosis and their enzymes digest the bacteria