Chapter 2 Cell Division And Stem Cells

Question 1

What are the three stages of the cell cycle

Answer 1

Interphase
Mitosis
Cytokinesis

Question 2

What happens in Interphase

Answer 2

The cell grows in size, DNA and organelles replicate

Question 3

What happens in Mitosis

Answer 3

The cell replicated chromosomes line up along the centre of the cell and get pulled to
opposite poles. Nucleus divides.

Question 4

What happens in Cytokinesis

Answer 4

The cell membrane and cytoplasm divide to form 2 new identical daughter cells

Question 5

What is an Embryonic stem cells

Answer 5

It is a unspecialised cells from

embryos

Question 6

What is an Adult stem cells

Answer 6

This is an unspecialised cells from
adult tissues e.g. bone
marrow

Question 7

Adventage of a embryonic stme cell

Answer 7

Has the potential to develop into any tupe of cell/ tissue

Used to treat human diseases

Painless

Question 8

Advantge of adult stem cells

Answer 8

Plentiful supply

No ethical issues as permission can be given

Well tested

Question 9

Disadvantage of embronic stem cells

Answer 9

Unethical

Possible harm or death to the embryo

Question 10

Disadvantage of adult stem cells

Answer 10

Painful to extract

Fewer diseases can be treated