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Question


If our blood was made up of only the cells that fights pathogens, then what would it's colour be?


Options:
A .   Red
B .   Colourless
C .   Yellow
D .   White
Answer: Option C
:
C

  • Blood is mainly composed of two components- plasma and blood cells.

  • Plasma is yellow coloured fluid part of the blood. 

  • Blood cells are of three types- RBCs, WBCs and platelets.

  • RBCs are red in colour due to haemoglobin and functions in transport of gases.

  • White blood cells and platelets are colourless. WBCs are involved in defense mechanism, while platelets participate in blood clotting.

  • So, if we have only white blood cells in our body then the colour of the blood will be yellow due to colour of the plasma, since WBCs and platelets are colourless. 



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