Which enzyme converts glucose and fructose both into ethanol?

Identify the correct pair having amino acid $(A)$ and the hormone $(B)$ that is an iodinated derivative of the amino acid $(A)$. ($T$ and $Y$ represent one-letter codes for amino acids.)

The chemical compounds released by one species of animals in order to influence the behaviour of the other members of the same species are called:

Which of the following hormones is an example of a polypeptide?

Which enzyme converts starch into maltose?

During the process of digestion,the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process
$proteins$ $\xrightarrow{\text{enzyme } (A)} polypeptides$ $\xrightarrow{\text{enzyme } (B)} amino \ acids$,
are respectively