Golgi Apparatus

Question 1

Where does the Golgi occur?

Answer 1

In almost all eukaryotic cells.

Question 2

What does the Golgi consist of?

Answer 2

A stack of membranes that make up flattened sacs called cisternae, and small rounded hollow structures called vesicles.

Question 3

What is passed through the Golgi in strict sequence?

Answer 3

Proteins and lipids produced by the ER.

Question 4

What does the Golgi do to the proteins from the ER?

Answer 4

Modifies them, often adding non-protein components, such as carbohydrates, and also ‘labels’ them to be sorted and sent to their correct destinations.

Question 5

What happens to the modified proteins and lipids once sorted?

Answer 5

They are transported in the Golgi vesicles which are pinched off from the ends of the cisternae.

Question 6

What may the vesicles do?

Answer 6

Move to the cell surface, where they fuse with the membrane and release their contents to the outside.

Question 7

What are the functions of the Golgi?

Answer 7

Add carbohydrates to proteins to make glycoproteins, produce secretory enzymes, secrete carbohydrates, transport modify and store lipids, and form lysosomes.

Question 8

Where is the Golgi well developed?

Answer 8

In secretory cells such as epithelial cells.