L1 - Types of Stem cell

Question 1

Define blastocyst

Answer 1

An early ball of cells that will become an embryo

Question 2

Define iPSC’s

Answer 2

Induced pluripotent stem cells, that can be produced from adult somatic cells using appropriate protein transcription factors

Question 3

Define Totipotent

Answer 3

Can differentiate into any cell type INCLUDING cells from the placenta and umbilical cord (extraembryonic cells)

Question 4

Define Pluripotent

Answer 4

Cen differentiate into any cell type, EXCLUDING those from the placenta and umbilical cord (extraembryonic cells)

Question 5

Define Multipotent

Answer 5

Can differentiate into more than one cell type but more limited than pluripotent cells. Adult stem cells are an example

Question 6

Define Unipotent

Answer 6

Can only differentiate into one type of cell

Question 7

In a stem cell, DNA is wrapped _____ around histone proteins.
In a differentiated cell, segments of DNA that are not required for the cell are wrapped ________

Answer 7

In a stem cell, DNA is wrapped LOOSELY around histone proteins.
In a differentiated cell, segments of DNA that are not required for the cell are wrapped TIGHTER

Question 8

What are cardiomyocytes?

Answer 8

Heart muscle cells that compose a lot of the cardiac tissue in our hearts

Question 9

What does recent research suggest about cardiomyocytes?

Answer 9

That old/damaged cardiomyocytes can be replaced by new ones derived from a small supply of unipotent stem cells in the heart