Which of the following vitamins acts as a primary antioxidant?

$A$ deficiency of which of the following causes continuous bleeding from an injured part of the body?

Haemoglobin contains

We commonly call $ATP$ as the energy currency of the cell. Can you think of some other energy carriers present in a cell? Name any two.

Match the names of biomolecules listed under column $I$ with the characteristics given under column $II$; choose the answer which gives the correct combination of the alphabets of the two columns.

Column-$I$ (Biomolecule)	Column-$II$ (Characteristics)
$(A)$ $ATP$	$(p)$ One or more sugar monomers
$(B)$ $DNA$	$(q)$ The main source of energy
$(C)$ Protein	$(r)$ Two strands of nucleotides
$(D)$ Carbohydrate	$(s)$ Long sequence of amino acids

Match the following columns:

Column $I$	Column $II$
$A$. Starch	$i$. Protein synthesis
$B$. Hemoglobin	$ii$. Sex hormones
$C$. $RNA$	$iii$. Storage product
$D$. Steroids	$iv$. Transport of gases