Proteins

Question 1

What are the groups used to classify proteins

Answer 1

Fibrous and globular

Question 2

What are fibrous proteins

Answer 2

.fibrous proteins are long spiral chains that are folded to form strong structures. They are the major structural material of animal tissue for example hair and nails

Question 3

What are globular proteins

Answer 3

.globular are involved in the maintenance of life process. They have spiral chains/sheets folded into compact units by hydrogen bonding. For example enzymes

Question 4

What are enzymes

Answer 4

. Enzymes are biological catalysts they work best at optimum temp/PH
Extreme heat or PH denatures the enzyme

Question 5

What are the monomers used to make proteins

Answer 5

.the monomers used to make proteins are called amino acids

The amino acids bond in a condensation polymerisation reaction

Question 6

Draw the structure of an amino acid

Answer 6

.

Question 7

What is an essential amino acid

Answer 7

An essential amino acid. Body cannot synthesise for itself and must be obtained through diet

Question 8

Show how these amino acids react together

Answer 8

.

Question 9

What methods can be used to identify an amino acid and form a section of a protein

Answer 9

.ro identify amino acids paper chromotography can be used. This involves the hydrolysis of protein which is then followed by paper chromotography with known