What is the reactant for the glycolysis reaction that is catalyzed by the enzyme aldolase?
Reactant: Fructose-6-biphosphate. Products: Dihydroxyacetone phosphate and glyceraldehyde-3-phosphate. Enzyme: Aldolase.
What are the reactants needed for glycolysis?
Glucose
Glucose is the reactant; while ATP and NADH are the products of the Glycolysis reaction.
What is aldolase in glycolysis?
Aldolase is a cytoplasmic enzyme involved in glucose and fructose metabolism. It specifically catalyzes the reversible reaction of converting fructose 1,6-bisphosphate into dihydroxyacetone phosphate (DHAP) and glyceraldehydes 3-phosphate. The enzyme works on six reversible reactions in gluconeogensis and glycolysis.
How galactose and fructose enter the glycolytic pathway?
Fructose enters the glycolytic pathway in the liver through the fructose 1-phosphate pathway. There are no catabolic pathways to metabolize galactose, so the strategy is to convert galactose into a metabolite of glucose. Galactose is converted into glucose 6-phosphate in four steps.
What are the three main products of glycolysis?
1: Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy.
What type of reaction does aldolase?
Aldolase is a glycolytic enzyme that catalyzes the conversion of fructose 1-6-diphosphate to glyceraldehyde 3-phosphate and dihydroxy-acetone phosphate via the glycolysis metabolic pathway. Within the cell, aldolase is localized in both the cytoplasm and nucleus.
What causes high aldolase?
Elevated aldolase is usually a sign of muscle or liver damage. For example, muscle damage from a heart attack releases aldolase in large quantities. Liver damage, such as hepatitis or cirrhosis, raises aldolase levels as well.
Which steps of glycolysis are irreversible?
3 irreversible steps in glycolysis: hexokinase; phosphofructokinase; pyruvate kinase. New enzymes are needed to catalyze new reactions in the opposite direction for gluconeogenesis.
How many steps of glycolysis are irreversible?
3 steps
Glycolysis is a ten-step process, out of which 7 steps are reversible and 3 steps are effectively irreversible. These are 1st, 3rd and last steps catalysed by hexokinase, phosphofructokinase and pyruvate kinase, respectively.