Which of the following reaction of glycolysis is irreversible

1. Glucose is converted to glucose 6-phosphate in the presence of the enzyme hexokinase.

2. Fructose 6-phosphate is converted to fructose 1,6-biphosphate in the presence of the enzyme phosphofructokinase.

3. Phosphoenolpyruvate is converted to pyruvate in the presence of the enzyme pyruvate kinase.

4. isomerization of glucose 6-phosphate to fructose 6-phosphate

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#Question id: 5108

#Unit 5. Developmental Biology

The absence of limbs in snakes may be attributable to the evolution of changes in:

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#Question id: 844

#Unit 1. Molecules and their Interaction Relevant to Biology

It is a given set of conditions that are required  for the maintenance of the active set of cellular proteins

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#Question id: 11001

#Unit 7. System Physiology – Animal

In which phase of the ventricular muscle action potential is the potassium permeability the highest?

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#Question id: 24630

#Unit 2. Cellular Organization

Part of genome which changes expression of genome called as

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#Question id: 922

#Unit 1. Molecules and their Interaction Relevant to Biology

Which compound is an intermediate of the  oxidation of fatty acids?