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Respiration in Plants

Which of the ...

Question

Which of the following is an important intermediate formed in all types of respiration?

A

Acetyl CoA

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B

Oxaloacetate

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C

Pyruvic acid

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D

Tricarboxylic acid

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Solution

The correct option is C Pyruvic acid
Cellular respiration can take place in presence or absence of oxygen. Aerobic respiration starts with glycolysis in which the end product is pyruvic acid which then enters Krebs' cycle. Anaerobic respiration may also start with glycolysis but in the absence of oxygen, pyruvic acid is oxidised anaerobically releasing less energy.
So, the correct answer is 'Pyruvic acid'.

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