Anaerobic respiration is also known as

The figure given below is designed to show yeast respiration. In one of the tubes, there is yeast suspension in glucose solution. This solution was boiled before yeast was added to it. Which one of the following is the possible reason for boiling sugar solution?

Arrange the given reactions occur in electron transport in correct sequence.

$I)$ Oxygen $\to$ Removes ${\mathrm{H}}_2$ from ETS $\to$ Receives electrons form $ETS$.

$II)$ Ubiquinone $\to$ Oxidized from ubiquinol $\to$ Receives reduced equivalents from ${\mathrm{FADH}}_2$.

$III$Cyt C oxidase $\to$ Reduced by cytochrome $\mathrm{C}\to$ Electron donor for ${\mathrm{O}}_2$ to release ${\mathrm{H}}_2\mathrm{O}$.

$IV)$ Cytochrome $\mathrm{C}\to$ Mobile carrier $\to$ Transfer $e^{-}$ from cyt $\mathrm{b}$ to cyt $\mathrm{c}$ oxidase.

Respective products released along with main product in biochemical reactions catalysed by given enzymes

A) Glutamine synthetase                      I) NADH + H^{​​​​​​+}

B) Fructose 1,6-bisphosphatase        II) ADP + Pi

C) Hexokinase                                      III) Inorganic phosphate

D) Malate dehydrogenase                   IV) ADP

Assertion ($\mathrm{A}$): Anaerobic respiration yields less energy utilizing oxygen.

Reason ($\mathrm{R}$): In anaerobic respiration, energy is released due to the incomplete breakdown of organic molecules.