differentiation

Question 1

why do cells divide

Answer 1

1) growth
2) repair

Question 2

specialized cell

Answer 2

specific function and structure

Question 3

stem cell

Answer 3

unspecialized can turn into specialized however it wants to

Question 4

2 types of stem cells

Answer 4

embryonic: present in human embryos and involved in early
growth and development
adult: involved in
replacement of damaged tissue

Question 5

2 types of embryonic stem cells

Answer 5

a) totipotent: can become a complete, viable organism (can theoretically make a clone). comes from zygote

b) Pluripotent: can become all cell types in an adult organism. comes from blastocyst

Question 6

2 types of adult stem cells

Answer 6

a) multipotent: can become family of cell types

b) unpotent: can only become 1 cell type

Question 7

sperm + egg = ?

Answer 7

zygote!

Question 8

blastocyst

Answer 8

zygote keeps dividing into a bajillion little cells

Question 9

tissues: specialized cells that similar in structure group together to form tissues.

4 types?

Answer 9

1. Epithelial: lines and protects
   tissues
2. Connective: bind tissues together
3. Muscle: allow movement
4. Nervous: allow communication