EASY
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The scheme of glycolysis is given by

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Important Questions on Respiration in Plants

HARD

Which ONE of the following statements is INCORRECT about the hexokinase-catalysed reaction given below?

Glucose + ATP Glucose-6-phosphate+ADP

EASY

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). 

Assertion (A): ATP is used at two steps in glycolysis.

Reason (R): First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of Fructose-6-phosphate to Fructose-1,6-diphosphate.

In the light of the above statements, choose the correct answer from the options given below:

HARD

Arrange the following in the order of their occurrence in the glycolytic pathway.

I. Triose bisphosphate Triose phosphate

II. Fructose-6-phosphate  Fructose 1,6-bisphosphate

III. Phosphoenolpyruvate  Pyruvic acid

IV. 2-Phosphoglycerate Phosphoenolpyruvate

V. Glucose-6-phosphate Fructose-6-phosphate

VI. Triose phosphate 2-Phosphoglycerate

The correct sequence is:

EASY
What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
EASY
Which of the following conversions in glycolysis is an example of substrate level phosphorylation?
MEDIUM

Respective products released along with main product in biochemical reactions catalysed by given enzymes

A) Glutamine synthetase                      I) NADH + H​​​​​​+

B) Fructose 1,6-bisphosphatase        II) ADP + Pi

C) Hexokinase                                      III) Inorganic phosphate

D) Malate dehydrogenase                   IV) ADP

EASY
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
MEDIUM

Based on the given process, identify the correct match for A, B, C and D from the following options.
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EASY

In which of the following reactions of glycolysis, a molecule of water is removed from the substrate?

EASY
How many molecules of pyruvic acid are formed in glycolysis?
EASY

The reactions of Pentose Phosphate Pathway (PPP) take place in

EASY
The enzyme required to catalyze the last step of glycolysis is?
EASY
In which of the following reactions of glycolysis, a molecule of water is removed from the substrate?
HARD
Four respiratory enzymes are given below. Arrange them in increasing order of the carbon number in the substrates on which they act.

1. Enolase
2. Aconitase
3. Fumarase
4. Alcohol dehydrogenase
MEDIUM
How many PGAL are produced by glycolysis of 3 molecules of glucose? How many ATP are released by respiration of these PGAL till formation of CO2 and H2O?