Chapter 1- Cytology (3)

Question 1

What is the function of the smooth ER?

Answer 1

This packages and modifies lipids.

Question 2

What is the structure of the smooth ER?

Answer 2

Has no ribosomes attached

Question 3

What is the sarcoplasmic reticulum?

Answer 3

An expanded specialised region of the smooth ER for muscle cells.

Question 4

What is the function of the Golgi apparatus?

Answer 4

Modifies and packages proteins from the rough ER.

Question 5

What is the structure of the Golgi apparatus?

Answer 5

Series of flat membrane stacks associated with tiny vesicles.

Question 6

The proteins are packaged into vesicles where they can follow what pathways?

Answer 6

1- Be released from the cell by exocytosis

2- End up forming part of the cell membrane

Question 7

What are lysosomes?

Answer 7

A membrane bound organelle that contains digestive enzymes

Question 8

What are lysosomes packaged by?

Answer 8

The Golgi apparatus

Question 9

Digestive enzymes in the lysosome do what?

Answer 9

1- Digest and destroy worn out components of the cell

2- Destroy bacteria and viruses.

Question 10

What does the nucleus do?

Answer 10

Controls the activities of the cell

Question 11

What does the nucleoplasm contain?

Answer 11

1- Chromatin- unwoven DNA strands

2- Nucleolus- where ribosomes are produced