Proteins

Question 1

What are essential amino acids?

Answer 1

Amino acids which cannot be made in the body

These are essential for maintaining a healthy and balanced diet

Question 2

What are the chains in protein forms held by?

Answer 2

Intermolecular forces between the side chains and the amino acids

Question 3

What is denaturing?

Answer 3

When proteins are heated, the intermolecular bonds are broken, allowing the proteins to change shape (denture)

Question 4

What effect does denaturing of proteins have on food?

Answer 4

It causes their texture to change when they are cooked

Question 5

What are enzymes?

Answer 5

Proteins which are able to catalyse biological reactions (biological catalysts)

Question 6

What happens during digestion?

Answer 6

Enzymes hydrolyse to break down proteins from foods into amino acids to form the substances we need to function

Question 7

Which 2 functional groups do amino acids have?

Answer 7

Carboxyl, amino group (-NH2)