Metal lauryl sulphate acts as:

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

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

$A$: Variations exist among different species of living organisms.
$R$: The sequence,type,and number of amino acids in the structure of a protein are fixed.

Which of the following is the structure of thymine?

Given below are two statements:
Statement $I$: Low temperature preserves the enzyme in a temporarily inactive state,whereas high temperature destroys enzymatic activity because proteins are denatured by heat.
Statement $II$: When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme,it is known as a competitive inhibitor.
In the light of the above statements,choose the correct answer from the options given below: