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The difference in results between glucose and glucose-1 phosphate as substrates can be attributed to the different metabolic pathways the substrates enter. Glucose-1 phosphate bypasses the initial phosphorylation step in glycolysis, leading to differences in downstream metabolite concentrations and enzyme activities. This can impact overall rates of respiration, energy production, and metabolite levels compared to using glucose directly.
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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 the substrate for isomerase?
The substrate of dipeptides is a peptide. These peptides are small proteins comprised of short chains of amino acid monomers bonded by other peptides that occur naturally in biological organisms
The conversion of glycogen to glucose-1-phosphate is the first step in?
The conversion of glycogen to glucose-1-phosphate is the first step in glycogen breakdown, also known as glycogenolysis. This process is catalyzed by the enzyme glycogen phosphorylase, which cleaves off a glucose molecule from the glycogen polymer. Glucose-1-phosphate is then further converted to glucose-6-phosphate for energy production.
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.
Is sucrose a substrate?
The Substrate for amylase are starch (amylose and Amylopectin), glycogen, and various Oligosaccharides.
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 the substrate of phosphorylase?
The substrate is Glucose-1-phospate which is broken down by only Phosphorylase and produces Starch as its end product
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
What would the equilibrium concentration of glucose-6-phosphate be under cellular conditions of glucose equals P equals 5mM?
Assuming glucose-6-phosphate is in equilibrium with glucose and phosphate, the equilibrium concentration of glucose-6-phosphate would also be 5mM. This is based on the principle of mass action and the equilibrium constant of the reaction between glucose, phosphate, and glucose-6-phosphate.
Is glucose a product or substrate?
Glucose can be both a substrate and a product in biochemical reactions. It can serve as a substrate in processes such as glycolysis where it is broken down to produce energy, and as a product in processes like photosynthesis where it is synthesized from carbon dioxide.
What is the substrate for isomerase?
The substrate of dipeptides is a peptide. These peptides are small proteins comprised of short chains of amino acid monomers bonded by other peptides that occur naturally in biological organisms
What is substrate of maltase?
maltase is found in intestinal juice and hydrolyzes maltose to glucose. Substrate = maltose Product = glucose
In cellular respiratio what does glucose turn into?
glucose-6-phosphate
What is the enzyme that convert galactose into glucose 1 phosphate?
The enzyme that converts galactose into glucose 1-phosphate is galactokinase. This enzyme phosphorylates galactose to form galactose 1-phosphate, which can then be converted into glucose 1-phosphate through further metabolic pathways.
How is glucokinase regulated?
Glucokinase is often referred to as the 'glucose sensor' as it directly relates the rate of β-cell glucose-dependent insulin secretion and the rate of hepatocyte glucose metabolism to the ambient blood glucose level. Read more in related link below.
Is Phosphorylation found in glycolysis?
Yes, phosphorylation is an important process in glycolysis. During glycolysis, glucose is phosphorylated to form glucose-6-phosphate, which is a key step in the pathway. Phosphorylation helps trap glucose inside the cell and also primes it for further metabolic reactions.
What does the cleavage of glycogen phosphorylase release?
The cleavage of glycogen phosphorylase releases glucose-1-phosphate by breaking the glycosidic bond within glycogen. This glucose-1-phosphate can then be further processed to yield free glucose for energy production.
