Question

The complete conversion of glucose in the presence of oxygen into carbon dioxide and water with release of energy is called as
A. Aerobic respiration
B. Anaerobic respiration
С. Glycolysis
D. Hydrolysis

Answer 1

Hint: Cellular respiration is a set of metabolic reactions and processes that take place within the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP) and then release waste products.

Complete answer:
Option A: To produce ATP, aerobic respiration requires oxygen \[\left( {{O_2}} \right)\]. Despite the fact that carbohydrates, fats, and proteins are ingested as reactants, aerobic respiration is the favoured form of pyruvate breakdown in glycolysis, and pyruvate must be transported to the mitochondria in order for the citric acid cycle to completely oxidize it. Carbon dioxide and water are generated, and the energy transferred is used to break bonds in ADP and add a third phosphate group to form ATP (adenosine triphosphate), \[NADH\], and \[FADH2\] by substrate-level phosphorylation.
Hence, the correct option is A.
Option B: Anaerobic respiration is the use of electron acceptors other than molecular oxygen in respiration and that involves the process of respiration in absence of oxygen.
Option B is incorrect.
Option C: Glycolysis is a metabolic pathway that converts glucose \[\left( {{C_6}{H_{12}}O{}_6} \right)\] into pyruvate \[\left( {C{H_3}COCO{O^ - }} \right)\] and a hydrogen ion,\[{H^ + }\]. Glycolysis involves breakdown of glucose.
So, option C is incorrect.
Option D: Hydrolysis is any chemical reaction in which a water molecule breaks one or more chemical bonds. Hydrolysis involves the addition of water molecules.
So, option D is incorrect.

So, option A is the correct answer.

Note:
Respiration involves catabolic reactions, which break large molecules into smaller ones, releasing energy when weak high-energy bonds, such as those found in molecular oxygen, are replaced by stronger bonds in the products. One of the most important ways a cell releases chemical energy to fuel cellular activity is through respiration. A series of biochemical steps, some of which are redox reactions, make up the overall reaction.