Question

Assertion:
Glycolysis is also called the EMP pathway.
Reason:
It is the only process of respiration in anaerobic organisms.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

Answer 1

Hint: Glycolysis is a metabolic pathway where glucose is broken down to form pyruvate molecules. It can take place in aerobic as well as an anaerobic situation.

Complete answer: Explanation for the assertion: In glycolysis, glucose undergoes partial oxidation to yield pyruvic acid molecules. It is also called the EMP pathway.
EMP stands for Embden, Meyerhof, and Parnas. It is so named because the most common type of glycolytic pathway was discovered by Gustav Embden, Otto Meyerhof, and Jakub K. Parnas.
The explanation for a reason: In the cytoplasm of the cell, glycolysis occurs.
It is an oxygen-independent metabolic pathway.
The large occurrence of glycolysis suggests that it is an ancient pathway.
Under the oxygen-free conditions (e.g. Archean oceans), the parallel mechanism of glycolytic reactions can occur e.g. the pentose phosphate pathway.
So, the pathway is present in almost all living organisms. In the anaerobic body, this is the only respiratory operation.

So, the correct answer is “Option C”.

Note: Glucose is converted into pyruvate in glycolysis process.
Pyruvate is a six-membered ring molecule without the use of oxygen, glycolysis produces ATP but may also occur in the presence of oxygen. The whole 10-step process is divided into two phases: the preparatory phase and the pay-off phase.