draw the flowchart of breakdown of glucose by various pathways in presence of oxygen in muscles under anaerobic respiration and in yeast.
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Glucose(six-carbon molecule)
↓(in cytoplasm)
Pyruvate(3 carbons)
↓ ↓ ↓
Absence of O2 Lack of O2 Presence of O2
(Yeast) (In human cells) (In Mitochondria)
{Ethanol + CO2 + energy} {Lactic Acid + energy} {CO2 + H2O + Energy}
Explanation:
- Cellular respiration is the process of generating energy as a result of the oxidation of food in living cells. It is a catabolic action that can occur in both the presence or absence of oxygen.
- In the first phase of respiration, pyruvic acid is formed by the dissolution of carbohydrates, proteins, peptides or amino acids, and fats or fatty acids, such as respiration (glucose, glycogen, starch, etc.).
- In the lack of oxygen, the pyruvic acid in human cells turns into lactic acid and releases energy.
- In the next phase, complete oxidation of pyruvic acid to water. And carbon dioxide is formed. The second step takes place in the matrix of mitochondria present in the cytoplasm.
Learn more: Breakdown of glucose
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