Unit 1-Cellular Differentiation

Question 1

A process in which a cell develops more specialised functions.

Answer 1

Differentiation

Question 2

Produced when cells express the genes to produce proteins characteristic of that type of cell.

Answer 2

Specialised cells

Question 3

Unspecialised cells in animals that can continue to divide and differentiate into specialised cells

Answer 3

Stem cells

Question 4

Regions of unspecialised cells in plants

Answer 4

Meristems

Question 5

Cells that are found in very early mammals that can divide and differentiate into all types of cells

Answer 5

Embryonic stem cells

Question 6

These cells replenish differentiated cells that need to be replaced

Answer 6

Adult tissue stem cells

Question 7

A term used to describe stem cells that can differentiate into a number of different types of cell.

(Adult or Tissue stem cells)

Answer 7

Multipotent

Question 8

A term used to describe stem cells that can differentiate into any type of cell.

(Embryonic Stem Cells)

Answer 8

Pluripotent (or totipotent)

Question 9

Examples of therapeutic uses of stem cells.

Answer 9

The use of stem cells to repair damaged organs or tissues.

(bone marrow transplants, corneal transplants and skin grafts for burns)

Question 10

Examples of research uses of stem cells

Answer 10

Model cells to study how diseases
develop
or being used for drug testing.

Question 11

Why do some people find the use of embryonic stem cells ethically unacceptable?

Answer 11

Involves the destruction of an early embryo.