1.3

Question 1

Stem cells

Answer 1

Cells that do not have a specialisation and can become any cell

Question 2

Where can stem cells be found

Answer 2

Bone marrow
Umbilical cord
Embryos
Meristem (plants)

Question 3

Alveoli adaptations are

Answer 3

Thin (1 cell thick)

Covered in networks of capillaries

Moist

Large surface area

Question 4

Red blood cells adaptations

Answer 4

Have haemoglobin (to combine with oxygen molecules)

Biconcave shape (maximise surface area)

8 micrometers thin

Question 5

White blood cells adaptations

Answer 5

Can ingest pathogens

Can create antibodies

Can create antitoxins

Question 6

Neurone adaptations

Answer 6

Very thing

Very long

Question 7

Skeletal muscle adaptations

Answer 7

Contains protein fibres that contract when energy is available

Question 8

Role of skeletal muscles

Answer 8

To maintains posture and keep you upright

Question 9

Come cell adaptations

Answer 9

Have many mitochondria

Question 10

Adipose cell adaptations

Answer 10

Have very small cytoplasm for ‘fat reservoir’

Many mitochondria