Topic 1 - Differentiation & Stem Cells Flashcards

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1
Q

Somatic Cells

A

Non-sex cells

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2
Q

How do somatic cells divide?

A

Mitosis

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3
Q

What does dividing somatic cells form?

A

More somatic cells

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4
Q

Differentiation

A

The process which results in cells becoming specialised

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5
Q

Specialised

A

They have their own specific structure and function

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6
Q

What happens once a cell becomes differentiated?

A

It only expresses the genes that produce characteristics for that type of cell

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7
Q

What type of body tissue types do somatic cells differentiate to form?

A

Epithelial and Connective

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8
Q

Epithelial Tissue

A

The cells that cover the body surface and line body cavities (e.g bladder, windpipe etc)

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9
Q

Connective Tissue

A

This is bone blood cartilage, muscle and nerve cells

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10
Q

The two types of stem cells

A

Embryonic and Tissue (adult) stem cells

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11
Q

Stem Cells

A

Unspecialised somatic cells that can divide to make copies of themselves and/or differentiate into specialised cells

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12
Q

Tissue (adult) stem cells are multipotent or pluripotent?

A

Multipotent

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13
Q

What are tissue (adult) stem cells involved in?

A

Growth, Repair and renewal of the cells found in that tissue

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14
Q

Multipotent

A

They can make all of the cell types found in a particular tissue type

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15
Q

What does tissue (adult) stem cells in bone marrow develop into?

A

Red blood cells, platelets and various types of phagocytes and lymphocytes

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16
Q

Pluripotent

A

The cells of the early embryo can make all of the differentiated cell types of the body

17
Q

What stem cell is pluripotent?

A

Embryonic

18
Q

What forms when germline cells are divided by Mitosis?

A

More germline cells

19
Q

What’s produced when germline cells are divided by meiosis?

A

Haploid gametes

20
Q

What is produced when cancer cells divide excessively?

A

A mass of abnormal cells (a tumour)

21
Q

What can happen if a cancer cell fails to attach to each other?

A

It can spread through the body to form secondary tumours