Cell division & Differentiation

Question 1

Cellular Differentiation is

Answer 1

the process by which cells become specialised by expressing certain genes to produce proteins for that type of cell

Question 2

Pluripotent cells are

Answer 2

Embryonic stem cells that differentiate into all cell types

Question 3

Multipotent cells are

Answer 3

Tissue stem cells that can only differentiate into a limited number of cell types found in that tissue

Question 4

Bone marrow cells can differentiate into

Answer 4

red blood cells, white blood cells and platelets

Question 5

A therapeutic use of stem cells is

Answer 5

corneal repair or the regeneration of damaged skin

Question 6

How are stem cells used as model cells?

Answer 6

To study how diseases develop or to use for drug testing

Question 7

What are the ethical issues with using stem cells?

Answer 7

Embryos are destroyed

Question 8

What are somatic cells?

Answer 8

Normal body cells (that are not involved in reproduction)

Question 9

What are germline cells?

Answer 9

Gametes and the stem cells that divide to form gametes

Question 10

How do somatic cells divide?

Answer 10

By Mitosis

Question 11

How many chromosomes do diploid cells have?

Answer 11

46 (23 pairs)

Question 12

How do germline cells divide?

Answer 12

By Mitosis and Meiosis

Question 13

How many chromosomes do haploid cells have?

Answer 13

23