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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.
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What reaction is in the first reaction of glycolysis receives a phosphate group from ATP?
In the first reaction of glycolysis, glucose is phosphorylated to form glucose-6-phosphate. This reaction is catalyzed by the enzyme hexokinase (or glucokinase in the liver) and involves the transfer of a phosphate group from ATP to glucose. This phosphorylation is crucial as it helps to trap glucose within the cell and prepares it for further breakdown in the glycolytic pathway.
Describe the first reaction in glycolysis Is this reaction catalyzed by an enzyme?
The first reaction in glycolysis is the phosphorylation of glucose to glucose-6-phosphate by the enzyme hexokinase. This reaction involves the transfer of a phosphate group from ATP to glucose, requiring energy for activation.
What reaction does the enzyme hexokinase catalyze?
Hexokinase catalyzes the phosphorylation of glucose to glucose-6-phosphate using ATP as a phosphate donor. This reaction is the first step in glycolysis and plays a crucial role in glucose metabolism in cells.
What molecule is the reactant in the first reaction of glycolysis?
http://wiki.answers.com/Q/What_molecule_is_the_reactant_in_the_first_reaction_of_glycolysis"
In which step of glycolysis is an inorganic phosphate added?
The conversion of glyceraldehyde 3 phosphate to 1, 3 bisphosphoglycerate catalyzed byglyceraldehyde 3 phosphate dehydrogenase using NAD+ and Pi
What is the first reaction to occur during glycolysis?
The first reaction in glycolysis is the phosphorylation of glucose to glucose-6-phosphate by the enzyme hexokinase. This step consumes one molecule of ATP to phosphorylate glucose, making it more reactive for subsequent steps in glycolysis.
What substrate is converted into glucose 6 phosphate by the enzyme hexokinase?
Glucose is the substrate that is converted into glucose 6-phosphate by the enzyme hexokinase. Hexokinase catalyzes the phosphorylation of glucose to glucose 6-phosphate in the first step of glycolysis.
What is used up during the first step of glycolysis?
Two molecules of ATP are consumed during the first step of glycolysis, where glucose is converted to glucose-6-phosphate by the enzyme hexokinase.
The enzyme hexokinase catalyzes the first step of glycolysis, and is crucial to initiating the process and preventing the initial substrate from easily traveling out of the cell (as its pre-reaction structure is membrane permeable)?
Glucose, glucose-6-phosphate
How does hexokinase maintain homeostasis?
Hexokinase helps maintain homeostasis by catalyzing the first step of glucose metabolism, converting glucose to glucose-6-phosphate, which traps glucose inside cells. This helps regulate blood glucose levels by controlling glucose uptake and utilization in cells. By initiating glycolysis, hexokinase also produces ATP, which is essential for energy production and cellular function.
Which of these enzymes catalyzes the first reaction in glycolysis?
Hexokinase
What are the steps of glucose?
Glucose is broken down in the first stage of respiration- glycolysis where it is phosphorylated by a molecule of ATP to form 1-6 glucose phosphate. It is then isomerised ti
