Question

Choose the correct option regarding the statements.

1. Plasma constitutes 45% of blood.

2. Albumin is plasma protein involved in osmotic balance.

3. Blood clotting factors are present in blood.

4. Plasma without clotting factors is serum.

5. Minerals are not found in blood.

• A. 1-4 correct, 5 wrong
• B. 1-2 correct, 3, 4, 5 wrong
• C. 2, 3, 4 correct, 1 and 5 wrong
• D. 2 and 4 correct, 1, 3, 5, wrong
• E. 1 and 5 correct, 2, 3, 4 wrong

Answer 1

The correct option is C 2, 3, 4 correct, 1 and 5 wrong

1. Blood plasma is the fluid portion of blood and constitutes about 55- 60% of the blood.

2. Albumin is the smallest protein present in blood plasma. It maintains osmotic pressure of plasma and also maintains osmotic balance of cells and tissue fluids.

3. Blood contains 13 clotting factors which are named in roman numerals from I to XIII. For example, factor I is fibrinogen, factor II is prothrombin and factor XIII is fibrin stabilising factor.

4. Blood plasma without any clotting factor is called serum.

5. Blood contains many inorganic micronutrients called minerals which are essential for normal body functions such as calcium, iron, phosphorus, sodium etc.

Hence, statements 2,3,4 are correct and 1,5 are incorrect.

So, the correct answer is '2, 3, 4 correct, 1 and 5 wrong'.