Which enzyme is active only in the presence of $Mg^{2+}$, $Mn^{2+}$, or $Zn^{2+}$?

Provide the flowchart of Glycolysis.

We find that in glycolysis there is one step where $NADH + H^{+}$ is formed from $NAD^{+}$; this is when:

Number of $ATP$ molecules formed in glycolysis by substrate-level phosphorylation is . . . . . . .

Which of the following is the first process that occurs in the first phase of glycolysis?

During glycolysis or the $EMP$ pathway,how many net $ATP$ molecules are produced directly from one mole of glucose (in $ATP$)?