The precursor of all adrenal medullary hormones secretion: 

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#Question id: 24222

#Biochemistry

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: 24223

#Biochemistry

Phosphoglycerate mutase catalyses a reversible shift of the phosphoryl group between C-2 and C-3 of glycerate; which of the following ion is essential for this reaction

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#Question id: 24224

#Biochemistry

Which of the following can be synthesized from pyruvate in one step, allosterically inhibits pyruvate kinase, slowing the production of pyruvate by glycolysis

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#Question id: 24225

#Biochemistry

Choose the incorrect option

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#Question id: 24438

#Biochemistry

The molecular structure of the mitochondrial ATP synthase has been determined by

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#Question id: 24519

#Zoology

Natural selection idea is developed  independently by