Which protein is found in the maximum amount in the biosphere?

Metabolic poisons which alter the structure of an apoenzyme are:

Which of the following groups contains only biocatalysts?

Name the class of enzyme that usually catalyzes the following reaction:
$S-G + S^* \rightarrow S + S^*-G$
Where,
$G \rightarrow$ a group other than hydrogen
$S \rightarrow$ a substrate
$S^* \rightarrow$ another substrate

What type of enzyme is aldolase?

Specific chemicals that act as biological catalysts are: