Which of the following is a direct oxidation pathway that occurs without glycolysis?

Given below are two statements.
Statement $I$ - During respiration the respiratory substrate directly unite with oxygen.
Statement $II$ - The primary process of respiration consists of removal of hydrogen from the respiratory substrate.
In the light of above statements,Select the correct option given below:

Which of the following shows a higher rate of respiration?

The process by which there is inhibition of aerobic respiration by atmospheric ${O_2}$ is known as:

Respiration can be defined as

The Pasteur effect is concerned with the shifting of environmental conditions from