Unit 1 - topic 1😜 Flashcards

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1
Q

What are stem cells?

A

Unspecialised cells which can continue to divide to make copies of themselves or become specialised.

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2
Q

What is a tumour?

A

A mass of abnormal cells.

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3
Q

How does a secondary tumour occur?

A

If abnormal cells break away they spread throughout the body.

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4
Q

How may stem cell research be used?

A

Using stem cells as models to study how disease develop or for drug testing.

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5
Q

What cells do not pass mutations onto offspring?

A

Somatic cells.

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6
Q

What cells do pass their mutations to offspring?

A

Germiline cells

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7
Q

What happens when germiline cells divide by mitosis&meosis?

A

Mitosis- creates more germiline cells.

Meiosis- produces haploid gametes.

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8
Q

What happens when somatic cells divide by mitosis?

A

Forms more somatic cells.

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9
Q

What is the role of somatic cells?

A

Differentiate to become different types of body tissues E.g. Muscle , nerve.

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10
Q

What is differentiation?

A

The process by which a cell develops more specialised functions.

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11
Q

What controls differentiation?

A

Specialised functions on/off of genes that produce protein characteristics for that cell
Eg Rbc’s , wbc’s.

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