Question

Match the contents of column I with column II.

$\begin{array}{cccc}& \text{I}& & \text{II}\\ \text{A}& \text{Blood group AB}& \text{1}& \text{7.4}\\ \text{B}& \text{Blood pH}& \text{2}& \text{Universal donor}\\ \text{C}& \text{Blood group O}& \text{3}& \text{72}\\ \text{D}& \text{Normal heart beat}& \text{4}& \text{Universal recipient}\end{array}$

• A. A-2, B-1, C-4, D-3
• B. A-4, B-1, C-2, D-3
• C. A-2, B-3, C-4, D-1
• D. A-2, B-3, C-1, D-4

Answer 1

The correct option is B A-4, B-1, C-2, D-3

• Person with blood group 'O' can donate the blood to individual with any other blood group. Hence, the individual with blood group 'O' is called universal donor.
• Person with 'AB' blood group can receive blood from individual with any other blood group. So, the person with blood group 'AB' is called universal recipient.
• The pH of oxygenated blood is 7.4. It is deep red in colour and salty in taste.
• In case of a healthy person, there are 72 beats of heart per minute. Rate of heart beat increases due to physical exercise and emotions.