stem cells

Question 1

what is a stem cell

Answer 1

cells that are able to express all of their genes and divide by mitosis

Question 2

what is totipotent cell

Answer 2

stem cells that are able to express all genes in an embryo

Question 3

what is a multipotent cell

Answer 3

stem cells that can develop into a limited number of cell types

Question 4

what is a pluripotent cell

Answer 4

stem cells that can become almost any cell type

Question 5

how do multicellular organisms begin their life

Answer 5

a single cell becomes a ball of non-specialised cells via mitosis

Question 6

whats problems with the use of stem cells in medicine

Answer 6

can cause tumours and cancerous cells and gene mutations

Question 7

what is the sources of stem cells

Answer 7

embryo, placenta, umbilical cord, bone marrow

Question 8

what can stem cells be used for in modern medicine

Answer 8

create damaged cells, tissues .e.g. skin, diabetic pancreas

Question 9

what is induced pluripotent stem cells

Answer 9

stem cells removed from the body that have been reprogrammed to an undifferentiated cell
-can be used to treat type 1 diabetes