Variation In Biochemistry And Cell Structure

Question 1

Describe haemoglobin

Answer 1

• large protein with quaternary structure

* each polypeptide chain has a haem group which contains iron and gives the red colour

Question 2

Oxyhaemoglobin

Answer 2

• reversible reaction
• oxygen joining is loading/association
• oxygen leaving unloads/dissociates

Question 3

Role of haemoglobin

Answer 3

*carries oxygen around the body