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Questions
Redraw the flow-chart with corrections. Explain in brief the process of obtaining energy through oxidation of carbohydrates, lipids & proteins.
How energy is formed from oxidation of carbohydrates, fats and proteins? Correct the diagram given below.
Solution
Corrected flow-chart:
Process of obtaining the energy:
- Carbohydrates: Carbohydrates like glucose are oxidized to pyruvic acid. Pyruvic acid is converted to acetyl-co-enzyme-A which is oxidized through Kreb’s cycle. The molecules of NADH2 produced during this are oxidized through electron transfer chain reaction and finally, energy is obtained.
- Proteins: Proteins are digested to amino acids and amino acids are converted into acetyl-co-enzyme-A. Acetyl-co-enzyme-A is oxidized through Kreb’s cycle. The molecules of NADH2 produced during this are oxidized through electron transfer chain reaction and finally, energy is obtained.
- Lipids: Lipids are converted to fatty acids and fatty acids to acetyl-co-enzyme-A. Acetyl-co-enzyme-A is oxidized through Kreb’s cycle. The molecules of NADH2 produced during this are oxidized through electron transfer chain reaction and finally, energy is obtained.
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