Proteins

Question 1

What is the role of proteins?

Answer 1

Proteins are major structural materials of animal tissues and are essential for maintenance and regulation of life processes.

Question 2

What are proteins made from?

Answer 2

They are made from amino acids

Question 3

What groups are in amino acids?

Answer 3

amino group ( -NH2)
Carboxyl group (-COOH)

Question 4

How are proteins formed?

Answer 4

Proteins are formed when one amino group and carboxyl group of another amino acid join together with the elimination of water.
(condensation reaction)

Question 5

What is the peptide link?

Answer 5

-CONH-

Question 6

Essential amino acids

Answer 6

These are the one required by the body for protein synthesis but they must be acquired through the diet.

Question 7

What happens to proteins during digestion?

Answer 7

They are broken down during digestion via enzyme hydrolysis

Question 8

How do proteins get their shape and how do temperature affect them?

Answer 8

Proteins form spirals, sheets and other complex shapes. They are kept in these shapes by intermolecular forces.
When the proteins are heated, the bonds are broken which allows the protein to change shape (denature). This change in shape causes the texture of food to change when heated.