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Flashcards in Revision Deck (50):
1

What do all cells contain?

Chromosomes

2

A small packet of information is called...

Genes

3

How many chromosomes does your body contain?

46

4

How many pairs of chromosomes does your body contain?

23

5

Body cells divided into a series of stages known as the..?

Cell cycle

6

What does mitosis produce?

Two identical cells

7

Why is mitosis important?

Provides growth, development

8

What happens in stage one of the cell cycle?

Longest stage in the cell cycle, cells grow bigger, carries normal cell activities

9

What happens in stage two of the cell cycle?

One set of chromosomes is pulled to each end of the dividing cell, nucleus divides

10

What happens in stage three of the cell cycle?

The stage during which the cytoplasm and the cell membrane also divide to form two identical daughter cells.

11

The stem cell divides and becomes a hollow ball of cells called the..?

Embryo

12

Your bone marrow is a good source of...?

Adult stem cells

13

The inner cells of the embryo balls are called the..?

Embryonic stem cells

14

Many embryonic stem cells come from..?

Aborted embryos

15

Cells becoming specialised to do a specific job is called...?

Differentiation

16

The length of the digestive system is...?

6 and 9 metres long.

17

The food you take in and eat is made up of...?

Large insoluble molecules

18

What do enzymes do?

Enzymes break down the large insoluble food molecules into smaller, soluble ones.

19

DNA is contained in....

Chromosomes, which are found in the nucleus of most cells

20

Chromosomes consist of...?

Long strands of a substance called DNA.

21

What do all cells contain?

Chromosomes

22

A small packet of information is called...

Genes

23

How many chromosomes does your body contain?

46

24

How many pairs of chromosomes does your body contain?

23

25

Body cells divided into a series of stages known as the..?

Cell cycle

26

What does mitosis produce?

Two identical cells

27

Why is mitosis important?

Provides growth, development

28

What happens in stage one of the cell cycle?

Longest stage in the cell cycle, cells grow bigger, carries normal cell activities

29

What happens in stage two of the cell cycle?

One set of chromosomes is pulled to each end of the dividing cell, nucleus divides

30

What happens in stage three of the cell cycle?

The stage during which the cytoplasm and the cell membrane also divide to form two identical daughter cells.

31

The stem cell divides and becomes a hollow ball of cells called the..?

Embryo

32

Your bone marrow is a good source of...?

Adult stem cells

33

The inner cells of the embryo balls are called the..?

Embryonic stem cells

34

Many embryonic stem cells come from..?

Aborted embryos

35

Cells becoming specialised to do a specific job is called...?

Differentiation

36

Chromosomes are found in...?

The nucleus of most cells

37

What colour is the blood plasma?

Yellow (liquid)

38

Where does the blood plasma travel in the body?

Through the blood cell, other substances around the body

39

What does the red blood cell pick up? (In the body)

They pick up oxygen from the air, put it into the lungs

40

What do red blood cells look like?

Round, slightly dense middle

41

What do white blood cells form?

They form antibiotics against microorganisms.

42

What do platelets do around the body?

Help the blood to clot around the womb

43

What do platelets look like?

Red, with ends sticking out of them.

44

What colour is the blood plasma?

Yellow (liquid)

45

Where does the blood plasma travel in the body?

Through the blood cell, other substances around the body

46

What does the red blood cell pick up? (In the body)

They pick up oxygen from the air, put it into the lungs

47

What do red blood cells look like?

Round, slightly dense middle

48

What do white blood cells form?

They form antibiotics against microorganisms.

49

What do platelets do around the body?

Help the blood to clot around the womb

50

What do platelets look like?

Red, with ends sticking out of them.