3.8.2.1 Stem Cells

Question 1

What is potency?

Answer 1

The ability of stem cells to undergo differentiation

Question 2

Totipotent

Answer 2

Able to divide into any type of cell (including the extraembryonic cells)

Question 3

Pluripotent

Answer 3

Able to divide into any type of cell except the extraembryonic cells

Question 4

Multipotent

Answer 4

Able to divide into a handful of different cell types

Question 5

Unipotent & example

Answer 5

Able to divide into one type of cell

Cardiomyocites

Question 6

Where are pluripotent cells found?

Answer 6

Embryos

Question 7

Where are totipotent cells found?

Answer 7

Limited time in early mammalian
embryos

Question 8

Where are multipotent and unipotent cells found?

Answer 8

Mature animals bone marrow

Question 9

How are stem cells used in medicine

Answer 9

Stem cell transplants

Research

Growing organs

Question 10

How are iPS cells produced

Answer 10

Taking adult stem cells and reprogramming them into a pluripotent stem cell by a cocktail of transciption factor.

Question 11

How are iPS cells enter the body

Answer 11

Packaged them inside a virus and infect adult cells

Question 12

Advantages of iPS cells

Answer 12

Do not have ethical baggage

Genetically identical to the patient so reduce the risk of rejection