Which of the following processes involves the loss of two protons and two electrons?

Distinguish between the following: (Any two)
$(a)$ Aerobic respiration and Anaerobic respiration
$(b)$ Glycolysis and Fermentation
$(c)$ Glycolysis and Citric acid Cycle

Select the correct option:
$(1)$ Fermentation / Aerobic respiration does not have an electron transport system.
$(2)$ Combustion / Respiration is a biochemical process.

The process of phosphorylation takes place in

Pyruvic acid is the end product of glycolysis. What are the three metabolic fates of pyruvic acid under aerobic and anaerobic conditions? Write them in the space provided in the diagram.

Select the correct statements from the following:
$I-$ During respiration,plants take in $CO_2$ and release $O_2$.
$II-$ The surface of most cells in plants is in contact with air.
$III-$ The loose arrangement of parenchyma cells in leaves,stems,and roots creates a network of air spaces.
$IV-$ The energy released during respiration is stored in the form of $ATP$.
$V-$ Glucose is oxidized to release energy in only a single step.