$Testosterone$ is responsible for the development of secondary male characteristics like deep voice and facial hair.

Explain enzyme catalysis by giving an example.

Which of the following biomolecules acts as specific catalysts in biological reactions?

Which of the following is an amine hormone?

Statements about Enzyme Inhibitor Drugs are given below.
$A$. There are Competitive and Non-competitive inhibitor drugs.
$B$. These can bind at the active sites and allosteric sites.
$C$. Competitive Drugs are allosteric site blocking drugs.
$D$. Non-competitive Drugs are active site blocking drugs.
Choose the correct answer from the options given below.

Match the items in Column-$I$ with the appropriate items in Column-$II$.

Column-$I$	Column-$II$
$A$. Zymase	$i$. Absence of air
$B$. Invertase	$ii$. Copper sulphate and pyridine
$C$. Anaerobic condition	$iii$. Sucrose
$D$. Denaturation of ethanol	$iv$. Ethanol