Most of the unique properties of water result from the fact that water molecules

When corn is boiled in water and then allowed to cool,the solution becomes sweet. This is due to:

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:

The primary precursor for the production of cholesterol in our body is

Energy currency of the cell is:

The most abundant intracellular cation is