Structure of Plasma Membrane (3)

Biology

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Structure of the plasma membrane (6)

There are various types of protein molecules embedded partially or fully within the membrane

Structure of the plasma membrane (7)

The protein molecules are widely dispersed between the phospholipid bilayer

Structure of the plasma membrane (8)

The protein molecules with channels or canals are known as channel proteins

Structure of the plasma membrane (9)

The protein molecules that function as carriers are called carrier proteins

Structure of the plasma membrane (10)

Some proteins and lipids have carbohydrate chains attached to them, known as glycoprotein and glycolipid respectively

Function of glycoprotein and glycolipid on the structure of the plasma membrane (1)

Act as receptors to hormones such as insulin

Function of glycoprotein and glycolipid on the structure of the plasma membrane (2)

Stabilise the membrane by forming hydrogen bonds with water

Function of glycoprotein and glycolipid on the structure of the plasma membrane (3)

Act as antigens for cell identification

Structure of the plasma membrane (11)

There are also cholesterol molecules found between the phospholipid molecules

Function of cholesterol on the structure of the plasma membrane

Make the phospholipid bilayer stronger, more flexible and less permeable to water-soluble substances such as ions

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