Which compound in the blood carries oxygen around the body? a. fibrin b. ferritin c. haemoglobin d. collagen

Breaking Down the Question

We need to identify which of the listed compounds is responsible for carrying oxygen in the blood.

Relevant Concepts

• Fibrin: A protein that helps in blood clotting.
• Ferritin: A protein that stores and releases iron in the body.
• Haemoglobin: A protein found in red blood cells that binds to oxygen and carries it from the lungs to the rest of the body.
• Collagen: A structural protein that provides support and strength to tissues.

Analysis and Detail

Among the options provided, haemoglobin is the primary compound responsible for oxygen transport. It binds to oxygen molecules in the lungs and releases them in tissues that need it.

Verify and Summarize

Upon reviewing the functions of each option, haemoglobin is the only compound listed that directly relates to oxygen transport in the bloodstream.

Final Answer

The compound in the blood that carries oxygen around the body is c. haemoglobin.