During respiration,substrate level phosphorylation occurs in . . . . . . .

It is much easier for a small animal to run uphill than for a large animal,because

Assertion : Glycolysis is the first step of respiration in which glucose completely breaks into $CO_2$ and $H_2O$.
Reason : In this process,there is net gain of twenty four molecules of $ATP$.

In respiration,the energy is produced during the process of

The term 'floating respiration' is used when the respiratory substrate is .........

Read the following statements and choose the set of correct statements :
$(A)$ In fermentation,the reducing agent is $NADH + H^+$.
$(B)$ There are three major ways in which different cells handle pyruvic acid produced by glycolysis.
$(C)$ The complete oxidation of pyruvate occurs by the stepwise removal of all the hydrogen atoms,leaving two molecules of $CO_2$.
$(D)$ The $NADH$ synthesised in glycolysis is transferred into the mitochondria and undergoes oxidative phosphorylation.
$(E)$ Complex-$IV$ of $ETS$ refers to cytochrome $c$ oxidase complex.
Choose the most appropriate answer from the options given below :