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Hi, in today's video we'll discuss about glycolysis and gluconeogenesis.
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And why some steps in these two processes are irreversible.
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Glycolysis is referred to as the phenomena in which glucose is converted into two pyruvate molecule for generation of the energy.
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And in gluconeogenesis, the glucose is formed or it is the synthesis.
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Of the glucose.
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So there are some steps in both of these processes which are irreversible.
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There are total 10 steps in glycolysis out of which three are irreversible.
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That means the steps which cannot be reversed.
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And these steps are step number one, third and 10.
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These three steps are irreversible.
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And also in gluconeogenesis, three.
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Reactions are irreversible.
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Why these reactions are irreversible? this is because in these three reactions or in these three steps the energy change occur at the largest amount.
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Energy change occur in large amount and this change in the free energy that is del this change in the free energy make them irreversible.
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Because if these steps are reversed, this energy will be or energy cost for the cell will be so high that it will not able to complete the glycolysis.
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So this is the irreversible steps.
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So the enzymes involved in these steps involved for glycolysis, in the first reaction, the enzyme that is involved is hexokinase.
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The first step, hexokinase is the enzyme that catalyze the conversion of glucose to glucose -16 -phosphate...