Question

Define Cellular Respiration.

Answer 1

Hint: When you are trying to lift a heavy bag or running to catch a bus or even reading a book. All these functions require energy in different amounts, which is provided to our muscles and other body parts through respiration. This helps us in performing at the cost of energy produced from the food that you intake.

Complete answer:
Respiration in a living being is one of the fundamental processes that ensure their survival. To survive, we need energy, and breathing makes sure we receive while performing any work.
- It occurs in all living organisms.
- The products of cellular respiration are water and carbon dioxide.
- Electrons carrier are: ${FADH}_2 $ and $NADH$
- The metabolic process of cellular respiration is catabolic and reactants is oxygen + glucose
- Location of cellular respiration is Mitochondria and energy source is glucose.

Equation of cellular respiration is:
$C_6 H_{12} O_6 { + 6O}_2 \to {6CO}_2 { + 6H}_2 O$

The respiration occurring at the cellular level wherein the cells produce energy by combining oxygen with food molecules is called cellular respiration.
Cellular respiration helps in providing the body with energy to carry out regular tasks. Therefore, it is evident that in order to survive, cellular respiration has to take place at times.

In simple words, the cells turn the food that you intake into energy.
On oxidation, the energy released through carbohydrates and other vital substrates gets absorbed in ATP. Nevertheless, a fraction of energy is lost as heat amidst the process.

Additionally, Glycolysis and oxidation of pyruvic acid take place during cellular respiration. It is expressed as
$C_6 H_{12} O_6 { + 6O}_2 \to {6CO}_2 { + 6H}_2 O $.

Note: During the simultaneous process of oxidative phosphorylation, ATP molecules are produced from the oxidation of carbohydrates. Subsequently. Synthesised ATP is used during stages of the metabolic process.