Gene expression - Protein shape relates to function

Question 1

Hydrogen bonds between amino acids form the….

Answer 1

secondary structure ( alpha-helix or beta-pleated sheet). R group interactions cause folding into the tertiary structure, this is held by ionic bonds and disulfide bridges.

Question 2

Globular proteins (includes enzymes) are a….

Answer 2

sphere shape and are soluble in water, functions include regulation (hormones) and catalytic (enzymes).

Question 3

Fibrous proteins are…..

Answer 3

fibre like and not water soluble. They are often stiff and made of repeating units. They have roles in the structure and contractile (can contract)