Cell division

Question 1

What is a stem cell?

Answer 1

Undifferentiated cell that can differentiate into one or more specialised cell types

Question 2

WHat are adult stem cells?

Answer 2

stem cells from adults that can only differentiate into certain specialised cells

Question 3

Where can adult stem cells be found?

Answer 3

Bone marrow

Question 4

what are embryonic stem cells

Answer 4

Stem cells from embryo that can differentiate into any specialised cell

Question 6

WHere are embryonic stem cells found?

Answer 6

early human embryos

Question 7

what is therapeutic cloning?

Answer 7

Patients cells are used to create early embryo clone of themselves

Question 8

advantage of using adult stem cell?

Answer 8

fewer ethical issues obtained from adults who can consent there use

Question 9

two disadvantages of using adult stem cells?

Answer 9

• can take a long time for a suitable donor to be found
  -can only differentiate into some specialised cell types, so treat fewer disease

Question 10

two advantages of using embyonic stem cells?

Answer 10

-can differentiate into any specialised cell. so can be used to treat any disease
-easier to obtain as they are found in spare embryos form fertility clinics

Question 11

two disadvantages of using embyonic stem cells?

Answer 11

-ethical issues surrounding their use, as every embryo is a potential life
-potential risk involved with treatment