Function and Structure of Haemoglobin

These flashcards cover key concepts related to the structure and function of haemoglobin, including its composition, protein classification, and physiological significance.

What is haemoglobin primarily made of?

Haemoglobin is made up of polypeptide chains with prosthetic groups, including Fe²⁺.

What type of protein is haemoglobin?

Haemoglobin is a quaternary protein.

What role does DNA play in relation to haemoglobin?

DNA provides the code for the order of amino acids in proteins, including haemoglobin.

How does the binding of oxygen affect haemoglobin's ability to bind more oxygen?

The binding of one oxygen molecule makes it easier for additional oxygen molecules to bind.

What is unique about crocodile haemoglobin?

Crocodile haemoglobin allows for long-lasting oxygen storage, helping with deep diving.

How does the affinity for oxygen differ in some organisms?

Some organisms have haemoglobin with a higher affinity for oxygen, allowing them to be in their system longer for respiratory purposes.

What is the significance of protein shape in relation to haemoglobin?

The shape of haemoglobin, determined by the sequence of amino acids, is crucial for its function in oxygen transport.