Which one of the following energy-storing compounds is formed when succinyl $CoA$ is converted into succinic acid?

Select the correct option:
$(1)$ During aerobic respiration,$32$ $ATP$ / $38$ $ATP$ are obtained from one molecule of glucose.
$(2)$ The reactions of the Krebs cycle occur in the mitochondrial matrix / inner mitochondrial membrane.

The membrane-bound enzyme involved in the Kreb's cycle is:

In Kreb's cycle,the hydrogen atoms removed at the succinate level are accepted by:

In the following reaction,identify $X$ and $Y$ respectively.
$\text{Pyruvic acid} + \text{CoA} + \text{NAD}^+ \xrightarrow[X]{\text{Mg}^{2+}} Y + \text{CO}_2 + \text{NADH} + \text{H}^+$

The cycle in which pyruvic acid is broken down in the presence of oxygen is known as