...... is known as the anti-sterility vitamin.

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

Which property of water allows it to absorb or lose heat from the surrounding environment without undergoing a significant change in its temperature?

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Skin color	$(P)$ Immunoglobulin
$(2)$ Immunity	$(Q)$ $Mg^{+2}$ containing protein
$(3)$ Movement	$(R)$ Melanin
$(4)$ Exoskeleton	$(S)$ Protein with four heme groups
$(5)$ Photosynthesis	$(T)$ Keratin
$(6)$ Transport of respiratory gases	$(U)$ Globular protein

If a pair of shared electrons are more attracted to one nucleus than to the other, they form a/an......bond.

Anti-scorbutic vitamin is also known as