Specialised cells

Question 1

what is a specialised cell?

Answer 1

cell that have a sttructure which makes them adapt to their function

Question 2

what is the function of sperm cell?

Answer 2

it is to carry the male DNA to the egg ( ovum)

Question 3

describe the structure of a sperm cell

Answer 3

• streamlined head and tail to aid swimming
• many mitochondria – for energy
• a acrosome has digestive enzymes which help break the outer layer of the membrane

Question 4

what is the function of egg cell?

Answer 4

it is to carry the female DNA and nourish the embryo

Question 5

describe the structure of a egg cell

Answer 5

• it contains nutrients in the cytoplasm
• have a haploid nucleus

Question 6

what is the function of a nerve cell?

Answer 6

to send electrical signals from onr body to another

Question 7

describe the structure of a nerve cell

Answer 7

• axon is long - enabline impulses to be carried in long distance
• mitochondria- for energy for chemical exchange ( neurotransmitter ) this allows the impulse to be one cell

Question 8

what is the function of a muscle cell?

Answer 8

to contract quickly to move bones or sequeeze

Question 9

describe the structure of a muscle cell

Answer 9

• has special protein - causing your muscle to contract
• has lot of mitochondria - respiration (contration)
• store chemical glycogen for respiration

Question 10

what is the function of a xylem cell ?

Answer 10

to transport water and mineral from the roots and soots

Question 11

describe the structure of phloem cell

Answer 11

• allowing movement of substance from cell to cell
• need mitochondria
• cell walls that form structure of seive plates

Question 12

what is the function of a phloem cell ?

Answer 12

to carry photosynthesis to all parts of the plant

Question 13

describe the structure of a xylem cell

Answer 13

• ligmin- which causes the cells to die
• hollow, allows water and mineral to pass through