SB2d Stem Cells Flashcards

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1
Q

Adults stem cells key info?

A

.only contain a few stem cells, such as those found in bone marrow
.can only differentiate into one of a few different cell types

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2
Q

Embryonic stem cells key info?

A

cells of an early embryo are able to develop into any type of specialised (differentiated) cell. Cells loose this ability as they mature.

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3
Q

Differentiate?

A

to become different or specialised (become different kind of cell).

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4
Q

Stem cell?

A

a kind of cell that can produce other kinds of cell through division.

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5
Q

Name different kinds of differentiated cells in the body (4)

A

.heart cell
.bone cell
.nerve cell
.blood cell

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6
Q

What are two sources of stem cells?

A

early embryo and adult stem cells from differentiated tissue.

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7
Q

Benefits of using embryonic stem cells to treat human disorders (2)

A

.Easier to remove from tissue
.Can produce a wide range of specialised cells to replace damaged tissue

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8
Q

Drawbacks of using embryonic stem cells to treat human disorders (1)

A

.Ethical issues with destroying embryo to get stem cells

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9
Q

Risks of using embryonic stem cells to treat human disorders (2)

A

.Differentiated cells may be rejected when used in treatment
.Cells can keep dividing and cause cancer

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10
Q

Describe the role of meristems in plant growth.

A

meristems contain stem cells that can produce any type of specialized cell throughout the life of the plant.

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