PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The first step in getting energy in the cell by breaking down glucose is known as
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the Krebs cycle
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electron transport
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fermentation
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glycolysis
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Explanation:
Detailed explanation-1: -During glycolysis, a glucose molecule with six carbon atoms is converted into two molecules of pyruvate, each of which contains three carbon atoms. For each molecule of glucose, two molecules of ATP are hydrolyzed to provide energy to drive the early steps, but four molecules of ATP are produced in the later steps.
Detailed explanation-2: -The correct option is B EMP Pathway. The scheme of glycolysis was given by Embden, Meyerhof and Parnas. Hence it is also known as the EMP pathway.
Detailed explanation-3: -During glycolysis, glucose ultimately breaks down into pyruvate and energy; a total of 2 ATP is derived in the process (Glucose + 2 NAD+ + 2 ADP + 2 Pi–> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O).
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