Explain the three pathways of breakdown …

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Explain the three pathways of breakdown of glucose in living organisms

Posted by Anisha Tickoo 5 years, 5 months ago

CBSE > Class 10 > Science

4 answers

Anisha Tickoo 5 years, 5 months ago

Thnku prabal ?

1Thank You

Anisha Tickoo 5 years, 5 months ago

Thnku yogita ?

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Yogita Ingle 5 years, 5 months ago

In the process of respiration, the first step is the breakdown of glucose, a 6-carbonmolecule breaks into 2 molecules of 3-carbon molecule called pyruvate. This process takes place in the cytoplasm. The subsequent breakdown pathway depends on the absence or presence of oxygen as follows
(i) Aerobic respiration it takes place in the mitochondria in the presence of oxygen. Pyruvic acid is converted into carbon dioxide, and water thus releasing a lot of energy.
(ii) Anaerobic respiration It takes place in the cytoplasm in the absence of oxygen. Pyruvic acid is converted either into CO2 and ethanol (in case of microbes, i.e., fermentation in yeast) or into lactic acid (in the case of muscle cells during sudden activity in humans.)

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Prabal Das 5 years, 5 months ago

Aerobic respiration Alcoholic fermentation Lactic acid formation

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CBSE > Class 10 > Science