cell membrane
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what does the bi-lipid layer consist of
two layers of fat molecules phospholipid tail - hydrophobic (dislikes water) phospholipid head - hydrophilic (likes water)
what is the function of the channel protein
transfer small molecules into and out of the cell
name 3 substances that can pass through channel proteins
alcohol, fatty acids, steroids, Oxygen, carbon dioxide
what is the function of the receptor protein
sends messages to cell when a molecule attaches to the protein. it reads and sends messages to the cell
what is the function of the recognition protein
allow the cell to recognise foreign cells to the body
what happens if there is no recognition protein in a cell
the cell is destroyed
what is the function of the carrier protein
carry molecules and larger molecules into the cell
what is the bi-lipid layer surrounded by
cytosol