Question

Match the following blood components with their function(s).

$\begin{array}{cc}\text{Column}\text{I}& \text{Column}\text{II}\\ 1.\text{RBC}& a.\text{Retains water}\\ 2.\text{WBC}& b.\text{Blood clotting}\\ 3.\text{Platelets}& c.\text{Immunity and defense}\\ 4.\text{Plasma}& d.\text{Transport of gases}\end{array}$

• A. 1$\Rightarrow$ d, 2$\Rightarrow$ c, 3$\Rightarrow$ b, 4$\Rightarrow$ a
• B. 1$\Rightarrow$ b, 2$\Rightarrow$ a, 3$\Rightarrow$ d, 4$\Rightarrow$ c
• C. 1$\Rightarrow$ a, 2$\Rightarrow$ b, 3$\Rightarrow$ c, 4$\Rightarrow$ d
• D. 1$\Rightarrow$ c, 2$\Rightarrow$d, 3$\Rightarrow$ a, 4$\Rightarrow$ b

Answer 1

The correct option is A

1$\Rightarrow$ d, 2$\Rightarrow$ c, 3$\Rightarrow$ b, 4$\Rightarrow$ a

Different components that make up the blood have different functions.

• RBCs play an active role in the transport of gases, like oxygen and carbon dioxide. Oxygen is transported from the lungs to the tissues, while carbon dioxide is transported from tissues to lungs.
• Platelets participate in the blood clotting process.
• White blood cells attacks the pathogens entering the body and protects it from microbial diseases. Some WBCs produce a special kind of protein called antibody which recognises and fights pathogens in the body.
• Albumin is the protein present in blood plasma which functions in retaining water and distributes it to all parts of the body.