Which one of the following is the energy currency of the cell,or the common immediate source of energy in cellular activity?

Identify and list $10$ interesting small molecular weight biomolecules. Determine if there are industries that manufacture these compounds through isolation and identify their primary buyers.

Assertion $A$: Water is an efficient solvent.
Reason $R$: Polar nature is an important property of water.
Which option is correct for Assertion $A$ and Reason $R$?

Fish-liver oils contain large amounts of

Given below are two statements:
Statement $I$: $A$ protein is imagined as a line,the left end represented by the first amino acid ($N$-terminal) and the right end represented by the last amino acid ($C$-terminal).
Statement $II$: Adult human haemoglobin consists of $4$ subunits (two subunits of $\alpha$ type and two subunits of $\beta$ type).
In the light of the above statements,choose the correct answer from the options given below:

Which of the following vitamins is water-soluble as well as an antioxidant?