$ATP$ was discovered by:

Which is the common and immediate source of energy for cellular processes?

Match the following columns:

Column-$I$	Column-$II$
$(1)$ Lipid	$(p)$ Curcumin
$(2)$ Collagen	$(q)$ Morphine
$(3)$ Alkaloids	$(r)$ Intercellular ground substance
$(4)$ Drugs	$(s)$ Lecithin

Identify the correct statements regarding biomolecules:
$(A)$ Lipids are generally water-soluble.
$(B)$ Proteins are polypeptides.
$(C)$ Polysaccharides are long chains of sugars.
$(D)$ Adenine and guanine are substituted pyrimidines.

Match the following:

Column $I$	Column $II$
$(a)$ Aquaporin	$(i)$ Amide
$(b)$ Asparagine	$(ii)$ Polysaccharide
$(c)$ Abscisic acid	$(iii)$ Polypeptide
$(d)$ Chitin	$(iv)$ Carotenoids

Select the correct option:

Match Column-$I$ with Column-$II$:

Column-$I$	Column-$II$
$(1)$ Cellulose	$(p)$ Acidic
$(2)$ Tyrosine	$(q)$ $CH_2-OH$ containing
$(3)$ Serine	$(r)$ Aromatic
	$(s)$ Homopolymer