Stem Cells, Key information

Question 1

What are stem cells?

Answer 1

Stem cells are cells which have not undergone differentiation and have not been specialised.

Question 2

Where are undifferentiated cells found in plants?

Answer 2

Found in meristems and to the tip of the roots.

Question 3

Where are undifferentiated cells found in animals?

Answer 3

In the bone marrow in the long bones.

Question 4

What are the different types of stem cells?

Answer 4

Adult & embryonic.

Question 5

What are adult stem cells?

Answer 5

Adult stem cells are undifferentiated cells, found in the bone marrow.
They multiply by cell division to replenish dying cells and regenerate damaged tissues.

Question 6

What are embryonic stem cells?

Answer 6

Embryonic stem cells are pluripotent stem cells found in the inner cell mass of a blastocyst. They are undifferentiated.

Question 7

How can stem cells be used?

Answer 7

In type 1 diabetes, in cases of multiple sclerosis, which can lead to paralysis and in cases of spinal cord or brain injury.

Question 8

What are the benefits of stem cells?

Answer 8

Treating patients with currently untreatable conditions, growing organs for transplants and medical research.

Question 9

What are the risks of stem cells?

Answer 9

Could be the wrong time, may not be effective and they are reliant on donors.