Which of the following hormones is responsible for the development of secondary female characteristics and participates in the control of the menstrual cycle?

Which enzyme is responsible for the digestion of compounds like paper and cloth in animals like cows and buffaloes?

$CH_2OOCR' \newline | \newline CHOOCR'' \newline | \newline CH_2OOCR'''$ $\xrightarrow[\text{Hydrolysis}]{\text{Enzyme}} CH_2OH \newline | \newline CHOH \newline | \newline CH_2OH + R'COOH + R''COOH + R'''COOH$
The enzyme used in the above reaction is:

Write a note on enzymes and their mechanism of action.

The enzyme ptyalin used for the digestion of food is present in

Fermentation is an