Question : Identify the pigment that gives blood its colour.

Option 1: Ferritin

Option 2: Chlorophyll

Option 3: Xanthophyll

Option 4: Haemoglobin

Question : $16 \sec ^2 A-16 \tan ^2 A=$_________.

Option 1: 9

Option 2: 0

Option 3: 16

Option 4: 1

Question : What is the simplified value of $(3+1)(3^{2}+1)(3^{4}+1)(3^{8}+1)(3^{16}+1)$?

Option 1: $\frac{(3^{32}-1)}{2}$

Option 2: $\frac{(3^{16}-1)}{2}$

Option 3: $\frac{(3^{64}-1)}{2}$

Option 4: $\frac{(3^{128}-1)}{2}$

Question : Leukaemia or blood cancer is characterised by abnormal increase of the

Option 1: Red Blood Cells

Option 2: White Blood Cells

Option 3: Blood platelets

Option 4: Blood plasma

Question : What is the value of $12-8 \div 2-\{16$ of $(-2)+(3 \times 5-4)\} ?$

Option 1: 29

Option 2: 45

Option 3: 1

Option 4: 0