Topic 3: Stem cells

Created by: sakiya
Created on: 22-02-19 17:20

What is diffrentiation?

The process by which cells become specialised.

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What is totipotency?

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

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What is pluripotency?

The ability of a stem to produce all specialised cells in an organism expect extraembryonic cells as the genes for these cells have become inactivated.

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What is a blastocyst and what kind of cells does it consist of?

It is a development from the zygote, the outer blastocyst layer goes on to form the placenta and the inner cell mass consists of 50 pluripotent cells.

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When are cells from the zygote said to be totipotent?

When a human embryo has undergone three cell cycles it consists of eight identical cells which are said to be totipotent.

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What it is multipotency?

They are self renewing by developing into multiple specialised cell types present in a specific tissue or organ. Most adult stem cells are multipotent stem cells.

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What medicine can be made from stem cells?

Regenerative medicine can be made this includes replacing, engineering regenerating of human cells, tissues and organs to achieve a normal function.

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What is therapeutic cloning?

This is somatic cell nuclear transfer, the patient needing a transplant would take one of their diploid cells. The nucleus would be fused with an ovum in which the nucleus has been removed, this is then stimulated to divide,& the stem cells extracted

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Other cards in this set

Card 2

Front

What is totipotency?

Back

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

Card 3

Front

What is pluripotency?

Back

Card 4

Front

What is a blastocyst and what kind of cells does it consist of?

Back

Card 5

Front

When are cells from the zygote said to be totipotent?

Back

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Topic 3: Stem cells