During respiration,pyruvic acid is formed by

Which of the given enzymes of glycolysis is required at the beginning of the process?

Glycolysis takes place in

The enzyme that catalyzes the conversion of glucose into glucose-$6$-phosphate is:

Which mineral is required as an activator for enzymes during glycolysis?

Glycolysis:
$I$. Causes partial oxidation of glucose (one molecule) to form $2$ molecules of pyruvic acid and $2$ $ATP$ as net gain.
$II$. Takes place in all living cells.
$III$. Uses $2$ $ATP$ at two steps.
$IV$. Scheme was given by Gustav Embden,Otto Meyerhof,and $J$. Parnas.
Choose the correct option containing appropriate statements from the above.