A student performed an enzyme inhibition reaction to experimentally determine the inhibitor constant of the EI complex using Dixion plot. i. The student setup two sets of experiments. Each set contained increasing concentrations of inhibitor, constant concentration of substrate and constant concentration of Alkaline phosphatase. ii. Set 1 contained lower concentration of substrate than set 2. iii. After mixing everything, he let the reaction happen for 15 minutes and measured the absorbance. iv. Then he plotted 1/v Vs 1/[I] - What error led to an unexpected graph? A) He is supposed to change the [S] within the set. B) He was not supposed to let the reaction happen for 15minutes before measuring the absorption C) He was not supposed to change the enzyme concentration within the set D) he made no errors E) his choice of X and Y axis are incorrect
Enzyme kinetics
In biochemistry, enzymes are proteins that act as biological catalysts. Catalysis is the addition of a catalyst to a chemical reaction to speed up the pace of the reaction. Catalysis can be categorized as either homogeneous or heterogeneous, depending on whether the catalysts are distributed in the same phase as that of the reactants. Enzymes are an essential part of the cell because, without them, many organic processes would slow down and thus will affect the processes that are important for cell survival and sustenance.
Regulation of Enzymes
A substance that acts as a catalyst to regulate the reaction rate in the living organism's metabolic pathways without itself getting altered is an enzyme. Most of the biological reactions and metabolic pathways in the living systems are carried out by enzymes. They are specific for their works and work in particular conditions. It maintains the best possible rate of reaction in the most stable state. The enzymes have distinct properties as they can proceed with the reaction in any direction, their particular binding sites, pH specificity, temperature specificity required in very few amounts.
A student performed an enzyme inhibition reaction to experimentally determine the inhibitor constant of the EI complex using Dixion plot.
i. The student setup two sets of experiments. Each set contained increasing concentrations of inhibitor, constant concentration of substrate and constant concentration of Alkaline phosphatase.
ii. Set 1 contained lower concentration of substrate than set 2.
iii. After mixing everything, he let the reaction happen for 15 minutes and measured the absorbance.
iv. Then he plotted 1/v Vs 1/[I]
- What error led to an unexpected graph?
A) He is supposed to change the [S] within the set.
B) He was not supposed to let the reaction happen for 15minutes before measuring the absorption
C) He was not supposed to change the enzyme concentration within the set
D) he made no errors
E) his choice of X and Y axis are incorrect
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