PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it is the first stage of cellular respiration
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it occurs in the cytoplasm
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it only occurs if oxygen is present
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means the breakdown of sugar
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Detailed explanation-1: -Answer and Explanation: The statement that is not true regarding glycolysis is c. Glycolysis can occur in the cytoplasm of the cell or the mitochondria. Glycolysis only occurs in the cytosol or cytoplasm of the cells and not in the mitochondria.
Detailed explanation-2: -Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation. However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.
Detailed explanation-3: -When oxygen is not present, pyruvate will undergo a process called fermentation. In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can continue. In the process of glycolysis, NAD+ is reduced to form NADH + H+.