Chapter 2 Specialised Cells

Question 1

Nerve cell(adaptations)

Answer 1

Extended cell to reach all across the body and covered in fat to insulate and quicken the nerve impulses

Question 3

To collect water and nutrients from the soil

Answer 3

Root hair cell

Question 4

Red blood cell (adaptation)

Answer 4

Haemoglobin attaches to the oxygen, bi-concave for more surface area and no nucleus

Question 5

Allow muscle contraction and relaxation

Answer 5

Muscle cell

Question 6

Supports the plant and lets water run through

Answer 6

Xylem

Question 7

Transports food in a plant

Answer 7

Phloem

Question 10

Phloem (adaptation)

Answer 10

Two way flow, have sleeve plates

Question 12

Root hair cell (adaptation)

Answer 12

Large surface area to collect more water/nutrients and thin walls to not restrict water flowing

Question 13

Xylem (adaptation)

Answer 13

No top or bottom walls so water can flow through

Question 14

Muscle cell(adaptation)

Answer 14

Contains mitochondria to release energy. In skeletal muscles the cells merge to contract in unison

Question 15

Carries oxygen around the body

Answer 15

Red blood cell

Question 21

To transmit and receive nerve impulses

Answer 21

Nerve cell