PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -By this time, you will have realized that glycolysis is a net energetically favorable (downhill, spontaneous) reaction pathway in a closed system, with an overall negative Go. Glycolysis is also normally spontaneous in most of our cells, driven by a constant need for energy to do cellular work.
Detailed explanation-2: -The correct answer is C. No net ATP are generated after glycolysis. Glycolysis occurs in the cytoplasm or cytosol of the cells and it does not require oxygen.
Detailed explanation-3: -The first and third steps of glycolysis are both energetically unfavorable. This means they will require an input of energy in order to continue forward. Per glucose molecule, 1 ATP is required for each of these steps. Therefore, a total of 2 ATP is needed during the energy investment phase of glycolysis.