Don’t know which ones to match with though. rate may be regulated by feedback in

Question

Don’t know which ones to match with though. rate may be regulated by feedback inhibition reaction rate depends on the concentration of pyruvate in the cytosol 1. phosphofructokinase catalyzes a reaction in the cytosol of the cell 2. pyruvate kinase 3. hexokinase 4. lactate dehydrogenase 5. none of the enzymes above 6. all enzymes above 7. three of the enzymes above catalyzes a reaction in which O2 is a cofactor catalyzes irreversible reaction fructose 1,6 bisphosphate is positive allosteric effector its stimulation by allosteric effectors stimulates the rate of glycolysis

Explanation / Answer

1. Phosphofructokinase ; its stimulation by allosteric effectors stimulates the rate of glycolysis.As a high amount of ATP inhibit it and high amount of ADP will activate it.

2. Pyruvate Kinase ; fructose 1,6 bis phosphate is a positive allosteric effector

3.Hexokinase ; may be regulated by feedback inhibition.As it catalyses the conversion of glucose to glucose 6 phosphate.This glucose 6 phosphate provide a feedback inhibition of this enzyme.

4.Lactate dehydrogenase; reaction rate depends on the concentration of pyruvate in the cytosol.As it converts pyruvate into lactate.

5.none of the enzymes above ; catalyse a reaction in which oxygen in a cofactor.For enzyme hexokinase , phosphofructokinase and pyruvate kinase cofactor is Mg2+ and for lactate dehydrogenase it is NADH.

6. all of the enzymes above; catalyses reaction in the cytosol of cell

7. Three of the enzymes above ;catalyses irreversible reaction (hexokinase , phosphofructokinase and pyruvate kinase)

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