Trivia: What is NOT a component of blood?
Red blood cells
Plasma
Blue blood cells
Platelets
The correct answer is Blue blood cells
So why is this answer correct? : Blood is made up of five main components: red blood cells, white blood cells, platelets, plasma, and cryo. Around 45% of blood consists of cells and platelets, and the other 55% consists of plasma, a yellowish liquid that everything else is suspended in. There are no blue blood cells, despite the bluish appearance of many people’s veins.