to demonstrate aerobic respiration

All QuestionsCategory: Secondary Schoolto demonstrate aerobic respiration
ABDULRAZAQ ABDULRAZAQ asked 1 year ago

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1 Answers
Loveth answered 1 year ago

Aerobic respiration is a biological process in which food glucose is converted into energy in the presence of oxygen. The chemical equation of aerobic respiration is as given below-

Glucose (C6H12O6)  + Oxygen 6(O2) → Carbon-dioxide 6(CO2)  +  Water 6 (H2O) + Energy (ATP)

According to the above-given chemical equation, energy is released by splitting the glucose molecules with the help of oxygen gas. At the end of the chemical reaction, energy, water molecules, and carbon dioxide gas are released as the by-products or end products of the reactions.
The 2900 kJ of energy is released during the process of breaking the glucose molecule and in turn, this energy is used to produce ATP – Adenosine Triphosphate molecules which are used by the system for various purposes.
Aerobic respiration process takes place in all multicellular organisms including animals, plants and other living organisms.
During the respiration process in plants, the oxygen gas enters the plant cells through the stomata, which is found in the epidermis of leaves and stem of a plant. With the help of the photosynthesis process, all green plants synthesize their food and thus releases energy.
The below-given chemical equation describes the complete process of photosynthesis or the aerobic respiration in plants.

  Carbon-dioxide 6(CO2)  + Water 6 (H2O) → Glucose  (C6H12O6)   +  Oxygen 6(O2)  

Steps of Aerobic Respiration

The complete process of aerobic respiration occurs in four different  stages:
1. Glycolysis
It is the primary step of aerobic respiration is glycolysis and takes place within the cytosol of the cell. During the glycolysis process, the glucose molecules are splitting and separated into two ATP and two NADH molecules, which are later used in the process of aerobic respiration.
2. Formation of Acetyl Coenzyme A
The second step in aerobic respiration is the formation of acetyl coenzyme A. In this process, pyruvate is oxidized in the mitochondria and  2-carbon acetyl group is produced. The newly produced 2-carbon acetyl group binds with coenzyme A, producing acetyl coenzyme A.
3. Citric Acid Cycle
The third step in aerobic respiration is the citric acid cycle, which is also called the Krebs cycle. In this stage of Aerobic respiration, the oxaloacetate combines with the acetyl-coenzyme A and produces citric acid. The citric acid cycle undergoes a series of reactions and produces 2 molecules of carbon dioxide, 1 molecule of ATP, and reduced forms of NADH and FADH.
4. Electron Transport Chain

This is the last step in aerobic respiration. In this phase, the large amounts of ATP molecules are produced by transferring the electrons from NADH and FADH. A single molecule of glucose creates a total of 34 ATP molecules.
 
Source: https://byjus.com/biology/aerobic-respiration/

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