Haemoglobin and Myoglobin Quiz

What type of macromolecule is haemoglobin?

• Carbohydrate

• Lipid

• Protein

• Nucleic acid

What metal ion is found in haemoglobin?

• Sodium

• Iron

• Calcium

• Magnesium

How many oxygen molecules can one haemoglobin molecule carry?

• 1

• 2

• 4

• 8

What happens when haemoglobin binds to oxygen?

• It changes conformation

• It releases carbon dioxide

• It breaks down

• It becomes white in color

Which form of haemoglobin has a higher oxygen affinity?

• Adult haemoglobin

• Fetal haemoglobin

• Deoxygenated haemoglobin

• Denatured haemoglobin

Where is myoglobin primarily found?

• Blood

• Muscle cells

• Brain

• Lungs

What is the function of myoglobin?

• Transporting oxygen in blood

• Storing oxygen in muscles

• Breaking down carbon dioxide

• Producing energy

Why does myoglobin have a higher oxygen affinity than haemoglobin?

• It has more iron atoms

• It stores oxygen for emergencies

• It has four subunits

• It contains ATP

When does myoglobin release oxygen?

• When muscle oxygen levels are high

• When muscles are working hard and need oxygen

• When body temperature is low

• When blood pH is high

What does the oxygen dissociation curve show?

• Oxygen transport in red blood cells

• The breakdown of oxygen

• The production of ATP

• The movement of carbon dioxide