key concepts ++ specialised cells

Question 1

how is a sperm cell adapted to its function ?

Answer 1

function: to get the ale DNA to the female DNA
adaptions: long tail + streamline head to help it swim to the egg + lots of mitochondria in the head to provide cell with enough energy + carries enzymes to digest through the egg cell membrane

Question 2

how is an egg cell adapted to its function?

Answer 2

• cytoplasm contains nutrients for the growth of the early embryo. The haploid nucleus contains the genetic material for fertilisation. The cell membrane changes after fertilisation by a single sperm so that no more sperm can enter. the early embryo. The haploid nucleus contains the genetic material for fertilisation. The cell membrane changes after fertilisation by a single sperm so that no more sperm can enter.

Question 3

how are ciliated epithelial cells adapted to their function ?

Answer 3

the cilia move/waft substances in one direction along the surface of the tissue

Question 4

what are sperm cells and egg cells called as a pair ?

Answer 4

gametes (sex cells)

Question 5

what do fertilised egg and sperm cells fuse to make?

Answer 5

a zygote

Question 6

approximately how long is a sperm cell with a tail ?

Answer 6

120 micrometers

Question 7

approximately how long is a sperm cell without a tail ?

Answer 7

60 micrometers

Question 8

what is the structure of the sperm cell ?

Answer 8

tail, 
middle section/mid-piece, 
head, 
nucleus, 
acrosome.