cell membrane

Question 1

what does the bi-lipid layer consist of

Answer 1

two layers of fat molecules
phospholipid tail - hydrophobic (dislikes water)
phospholipid head - hydrophilic (likes water)

Question 2

what is the function of the channel protein

Answer 2

transfer small molecules into and out of the cell

Question 3

name 3 substances that can pass through channel proteins

Answer 3

alcohol, fatty acids, steroids, Oxygen, carbon dioxide

Question 4

what is the function of the receptor protein

Answer 4

sends messages to cell when a molecule attaches to the protein. it reads and sends messages to the cell

Question 5

what is the function of the recognition protein

Answer 5

allow the cell to recognise foreign cells to the body

Question 6

what happens if there is no recognition protein in a cell

Answer 6

the cell is destroyed

Question 7

what is the function of the carrier protein

Answer 7

carry molecules and larger molecules into the cell

Question 8

what is the bi-lipid layer surrounded by

Answer 8

cytosol