Question

Describe the three main pathways of breakdown of Glucose.

Answer 1

Answer:

Explanation:

Breaking down of glucose can occur by various pathways ;

⑴ In presence of oxygen :

- Breaking down of glucose into pyruvate takes place in Mitochondria of a cell.

- End products are CO₂ , H₂O and energy.

⑵ In insufficient presence of oxygen :

- In muscle cells, due to insufficient presence of oxygen the cells undergoes anaerobic respiration.

- End products are Lactic acid and lot amount of energy.

⑶ In absence of Oxygen :

- In absence of Oxygen, glucose breakdown into pyruvate in cytoplasm only.

- End product are Ethanol, and small amount of energy.

plz mark as brainliest