CELL RESPIRATION
GLYCOLYSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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2 Oxygen molecules
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2 ATP molecules
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2 NAD+ molecules
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2 phosphate molecules
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Detailed explanation-1: -In this phase, the starting molecule of glucose gets rearranged, and two phosphate groups are attached to it. The phosphate groups make the modified sugar-now called fructose-1, 6-bisphosphate-unstable, allowing it to split in half and form two phosphate-bearing three-carbon sugars.
Detailed explanation-2: -The first step in glycolysis is catalyzed by hexokinase, an enzyme with broad specificity that catalyzes the phosphorylation of six-carbon sugars. Hexokinase phosphorylates glucose using ATP as the source of the phosphate, producing glucose-6-phosphate, a more reactive form of glucose.
Detailed explanation-3: -The first step in glycolysis is a priming reaction, where a phosphate group is added to glucose using ATP. This reaction is important for its ability to trap glucose within the cell.
Detailed explanation-4: -Phosphorylation: A biochemical process that involves the addition of phosphate to an organic compound. Examples include the addition of phosphate to glucose to produce glucose monophosphate and the addition of phosphate to adenosine diphosphate (ADP) to form adenosine triphosphate (ATP).
Detailed explanation-5: -The molecule that donates two phosphate groups to glucose to form this compound is adenosine triphosphate (ATP).