cellular differentiation

Question 1

what is Cellular differentiation?

Answer 1

process by which a cell expresses certain genes to produce proteins characteristic for that type of cell which allows a cell to carry out specialised functions.

Question 2

what are meristems?

Answer 2

regions of unspecialised cells in PLANTS that can self-renew/differentiate

Question 3

what are stem cells?

Answer 3

regions of unspecialised cells in ANIMALS that can self-renew/differentiate

Question 4

tissue stem cells are multipoint, what does this mean?

Answer 4

they can differentiate into all of the types of cell found in a particular tissue type

Question 5

what are the two types of stem cells?

Answer 5

embryonic and tissue stem cells

Question 6

how does certain genes being expressed result in different cell types?

Answer 6

different proteins are synthesised resulting in different cell types

Question 7

what are some therapeutic use of stem cell?

Answer 7

to repair damaged or diseased organs, for example bone marrow transplants, corneal transplants, and skin grafts for burns.

Question 8

what are ethical issues relating to the use of embryonic stem cells?

Answer 8

it involves the destruction of an embryo