Who coined the term 'enzyme'?

Given below are the statements regarding enzymes. Choose the correct statements.
$i$. All enzymes are proteinaceous.
$ii$. Enzyme becomes more active at the temperature of $60^{\circ}C$ to $70^{\circ}C$.
$iii$. Enzymes have one or two active sites where substrate binds with the enzyme.
$iv$. Any increase or decrease in specific $pH$,enzyme activity is always enhanced.
$v$. Enzymes remain active to catalyze again after completion of first reaction.

At what rate is the product formed for the reaction given below?
$H_2O + CO_2 \rightleftarrows H_2CO_3$

Which of the following is a competitive inhibitor of succinic dehydrogenase?

Give generalised information regarding enzymatic organization.

All enzymes are composed of which of the following?