Matching Blood Component Functions

Steps:

• Recall plasma transports dissolved substances like carbon dioxide, nutrients, and waste.
• Identify red blood cells carry oxygen using hemoglobin.
• Note white blood cells produce antibodies to fight infections.
• Confirm platelets enable blood clotting to prevent bleeding.

Why B is correct:

• It accurately assigns roles based on biological definitions: plasma carries CO2, red cells bind oxygen, white cells make antibodies, and platelets form clots.

Why the others are wrong:

• A: Swaps red cells (oxygen) with CO2 transport and white cells (antibodies) with oxygen; misassigns plasma and platelets.
• C: Incorrectly gives clotting to white cells and antibodies to platelets.
• D: Reverses red cells (oxygen to CO2) and plasma (CO2 to oxygen).

Final answer: B