Which is TRUE about the structure of myoglobin?

• Made up of multiple polypeptide chains
• One myoglobin molecule can bind to one O₂
• Each polypeptide chain binds to four haem groups
• A type of fibrous protein with a quaternary structure

Which is TRUE about the structure of hemoglobin?

• Made up of one polypeptide chain
• Can bind to one oxygen
• Is a respiratory pigment in RBC
• Is a tertiary level of protein

Bohr effect occurs when blood pH is decreases.

In lymphatic system, lacteal is the blood capillary in small intestine.