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Types of Respiration

In glycolysis...

Question

In glycolysis during which reaction, water molecule is released

A

2-phosphoglyceric acid phosphoenol pyruvic acid

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B

PGAL 3 PGA

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C

1, 3-biphosphoglyceric acid Phosphoglyceric acid

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D

Phosphoenol pyruvic acid Pyruvic acid

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Solution

The correct option is A 2-phosphoglyceric acid phosphoenol pyruvic acid
In glycolysis, when 2-phosphoglyceric acid is acted upon by enolase enzyme to form phosphoenol pyruvic acid, H2O is released. So the answer is '2-phosphoglyceric acid phosphoenol pyruvic acid'.

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Q. Pick the reaction from the following where the reduction of FAD

^{+}

occurs in the reactions of respiration.
(I) Succinic acid

\to

Fumaric
(II) Malic acid

\to

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(III) 2 phosphoglycerate

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Phosphoenol pyruvic acid
(IV) Pyruvic acid

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Q. Pick up the reactions from the following where a water molecule is removed and reduction of

N A D^{+}

does not occur in the reactions of respiration.
i) Succinic acid to fumaric acid
ii) Malic acid to oxaloacetic acid
iii) 2-Phosphoglycerate to phosphoenol pyruvic acid
iv) Pyruvic acid to acetyl CoA

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