The bond formed between the first phosphate group and adenosine in $ATP$ is

Which of the following protects from scurvy?

Choose the correct option ($T$-true,$F$-false).
$(I)$ Melting point of oil is lower.
$(II)$ All amino acids are acidic.
$(III)$ Lipid is water soluble.
$(IV)$ Enzyme shows its highest activity at a particular temperature.
$I - II - III - IV$

Statement $X$: Energy transformation always occurs in the metabolism of living organisms.
Reason $Y$: Living organisms continuously obtain energy from food.

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 $R$?

Vitamin-$E$ is also called: