The main purpose of glycolysis,the Krebs cycle,and the electron transport system is the production of .........

Sunken stomata are a characteristic feature of $.........$.

The overall goal of glycolysis,Krebs' cycle and the electron transport system is the formation of

Given below are two statements.
$Statement-I$: Enzyme pyruvate dehydrogenase complex brings about oxidative decarboxylation of pyruvic acid.
$Statement-II$: Enzyme pyruvate dehydrogenase is not present in cytosol of prokaryotes.
In the light of the above statements, choose the correct answer from the options given below:

How many $ATP$ molecules are produced from the complete oxidation of one glucose molecule via the $HMP$ shunt (Pentose Phosphate Pathway) (in $ATP$)?

What is the correct order of the stages of cellular respiration?