3.17

Question 1

what is totipotency?

Answer 1

The ability to produce all cell types, including all the specialised cells in an organism extraembryonic cells (cells of the placenta and the umbilical cord)

Question 2

what is pluripotency?

Answer 2

the ability of a stem cell to produce all the specialised cells in an organism (but not extraembryonic cells)

Question 3

Explain the meaning of the term totipotent stem cells

Answer 3

1. they are { undifferentiated/unspecialised } (cells)
2. that { divide continuously/ have unlimited cell division } ;
3. idea that they can become any cell type

Question 4

what is morula?

Answer 4

It is an early embryo made up of solid ball of 10-30 totipotency cells.

Question 5

what is blatocyst?

Answer 5

Its an early embryo consisting of a hollow ball of cells with an inner cell mass pluripotent cells that will eventually form a new organism.