Topic8 StemCells Flashcards

1
Q

What are Stem Cells?

A

Stem cells are undifferentiated cells that can continually divide and become Specialised.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is differentiation?

A

Differentiation is a process when stems cells become specialised.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the different type of stem cells?

A

Totipotent
Pluripotent
Multi potent
Unipotent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are Totipotent Stem cells?
Where do Totipotent Stem cells found?
What is the time limit of Totipotent Stem cells?

A

Totipotent stem cells can differentiate into any type of body cell.
Totipotent Stem Cells occur for a limited time
Totipotent cells found in early mammalian Embryos.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How do Totipotent Stem Cells differentiate?

A

Totipotent cells Only translate part of their DNA resulting in specialisation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are Pluripotent Stem Cells
Where are pluripotent stem cells found?
Give one use of pluripotent cells?

A

Pluripotent Stem Cells can Divide in UNLIMITED NUMBERS and differentiate into ALMOST any type of cell
Pluripotent Stem cells found in embryos.
Used in treating human disorders.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are Multi-potent and Unipotent Stem cells?
Where are they found?

A

Multi-Potent and Unipotent stem cells found in mature Mammals.
Multi-potent stem cells can differentiate into LIMITED NUMBER OF CELLS
Unipotent Stem Cells: differentiate into ONE TYPE OF CELL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the issues regarding Stem Cells?
[Hint 2]

A

1.Stem cells continue to divide producing a TUMOUR.
2.Ethical-Destruction of Embryo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are IPS cells?

A

IPS cells are induced pluripotent stem cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How are IPS cells made?

A

1.Created from adult Unipotent cells(Somatic)
2.Adult Unipotent cells are Treated with TRANSCRIPTION factors to switch on genes that induce PLURIPOTENCY

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is PLURIPOTENCY?

A

Pluripotency is making them more undifferentiated.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the advantage of iPS cells?
What does iPS stand for?
[3 advantages]

A

iPS stands for induced pluripotent stem cells.
Advantages:1.DONT CAUSE EMBRYONIC DESTRUCTION
2.Self-renewal property-so can divide indefinitely-used for long time.
3.Used in medical treatment instead of embryonic stem cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly