EVERYDAY SCIENCE

SCIENCE

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Respiration is a ____ reaction in which sugar is oxidized to produce energy.
A
physical
B
mechanical
C
chemical
D
cellular
Explanation: 

Detailed explanation-1: -Aerobic respiration is the form of respiration which uses oxygen. Glucose is oxidized to carbon dioxide, water and energy in aerobic respiration. The excess energy gets stored in the cell in the form of ATP.

Detailed explanation-2: -During aerobic respiration, complete oxidation of carbohydrates takes place. Glucose is broken down byoxygen to release energy, while carbon dioxide and water are the by-products of the reaction. The released energy is used to make a special energy molecule called Adenosine triphosphate (ATP).

Detailed explanation-3: -Cellular respiration is a redox reaction, i.e., both oxidation & reduction occurs. There is both loss and gain of electrons in respiration. Oxidation refers to electron loss, and reduction refers to electron gain. Here, glucose molecules are oxidized and oxygen molecules are reduced to generate water molecules.

Detailed explanation-4: -During aerobic respiration, the oxygen taken in by a cell combines with glucose to produce energy in the form of Adenosine triphosphate (ATP), and the cell expels carbon dioxide and water. This is an oxidation reaction in which glucose is oxidized and oxygen is reduced.

Detailed explanation-5: -Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. The chemical equation is C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen-> carbon dioxide + water). Was this answer helpful?

There is 1 question to complete.