Proteins

Question 1

Name and describe the basic unit of proteins

Answer 1

Amino Acids

Question 2

Distinguish between the meaning of essential and non-essential amino acids

Answer 2

Nonessential amino acids can be made by the body, while essential amino acids cannot be made by the body

Question 3

Provide three examples of foods that are a good source of proteins

Answer 3

Meat, Eggs and Dairy products

Question 4

Describe the hydrolysis of proteins in digestion

Answer 4

Proteins are broken down into their ‘building block’ amino acids

Question 5

Describe the condensation reactions used to build proteins

Answer 5

The condensation reaction of monomers that are amino acids results in polymers called polypeptides (or proteins).

Question 6

Recall the name and structure of a peptide linkage

Answer 6

A peptide linkage is a covalent bond that links amino acids together to form a protein.
A peptide is a short string of 2 to 50 amino acids, formed by a condensation reaction, joining together through a covalent bond.