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STD 11 - 12. Respiration in plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 12. Respiration in plants1 Mark
MCQ
In which one of the following processes $CO_2$ is not released?
  • A
    Aerobic respiration in plants
  • B
    Aerobic respiration in animals
  • C
    Alcoholic fermentation
  • ✓
    Lactate fermentation
✓

Answer

Correct option: D.
Lactate fermentation
d
(d) : Anaerobic respiration or fermentation can be of two types, $i.e.$, lactate fermentation and ethanol fermentation. Lactate fermentation produces lactic acid only as pyruvic acid produced in glycolysis is directly reduced by $NADH$ to form lactic acid and no $CO_2$ is produced. Alcoholic (ethanol) fermentationinvolves conversion of pyruvate to acetaldehyde,hence, $CO_2$ is released.

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