Identify the enzyme for the following reaction:
$CH_3COCOOH \longrightarrow CH_3CHO + CO_2$

Which of the following processes may be toxic to plants?

Given below are two statements.
$Statement-I$ - Skeletal muscles usually derive energy by anaerobic respiration.
$Statement-II$ - After vigorous exercise,lactic acid accumulates in muscle fibres,leading to muscle fatigue.
In the light of the above statements,choose the most appropriate answer from the options given below:

How many $ATP$ molecules are obtained from the fermentation of $1$ molecule of glucose?

Identify the products marked by $(i)$ and $(ii)$ in the following pathway:
$3$-phosphoglyceric acid $\rightarrow$ $(i)$ $\rightarrow$ Pyruvate $\rightarrow$ $(ii)$ (with $NADH + H^+$ being converted to $NAD^+$)

The enzyme involved in alcoholic fermentation is .........