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In MIO agar the ornithine decarboxylation reaction is indicated by a purple color a negative is yellow Why?
Probably because there is brom cresol purple in the medium. The bacteria ferments sugar which causes a decrease in pH, which optimalizes conditions for ornithine decarboxylation which again raises pH by formation of amines. Therefore, with ODC negative bacteria the pH will remain low which causes the indicator to change colour to yellow, and with ODC positive bacteria the pH will rise, and thus there will be no colour change. Source: http://aem.asm.org/cgi/reprint/23/4/710.pdf
What else can I help you with?
What is Kolbe decarboxylation?
Kolbe decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon dioxide.
What equation is used to indicate the exothermic reaction?
An exothermic reaction is typically indicated by a negative sign in front of the enthalpy change (∆H) in the reaction equation. This negative sign signifies that heat is released to the surroundings during the reaction.
What does Decarboxylation of pyruvate produces?
decarboxylation means removal of co2 from the reaction
What is decarboxylation of salicylic acid?
Decarboxylation of salicylic acid is a chemical reaction in which carboxylic acid group (-COOH) is removed from salicylic acid, resulting in the formation of phenol. This reaction is often used in organic chemistry to convert salicylic acid into phenol, which has various industrial and pharmaceutical applications.
Which reactions of the citric acid cycle involve oxidation and decarboxylation?
Reaction 3, and 4.
What is the mechanism of the THC decarboxylation reaction?
The mechanism of the THC decarboxylation reaction involves the removal of a carboxyl group from the THC molecule when it is exposed to heat. This process converts the non-psychoactive THCA into the psychoactive THC, which is responsible for the effects of cannabis when consumed.
Decarboxylation of an amino acid results in the evolution of carbon dioxide would a gas trap be an accurate measure of decarboxylation?
Yes, a gas trap can be an accurate measure of decarboxylation of an amino acid since the evolution of carbon dioxide is a characteristic reaction of decarboxylation. By capturing and measuring the evolved carbon dioxide in the gas trap, one can infer the extent of decarboxylation that has occurred.
Name a molecule that joins in a reaction to make acetyl-coa?
Pyruvate is a molecule that joins in a reaction to form acetyl-CoA through the process of pyruvate decarboxylation.
Can you reverse pyruvate decarboxylation?
Pyruvate decarboxylation is an irreversible reaction in cellular metabolism where pyruvate is converted into acetyl-CoA and carbon dioxide, primarily in the mitochondria. This process is catalyzed by the pyruvate dehydrogenase complex and is a key step linking glycolysis to the citric acid cycle. Due to its irreversibility, pyruvate decarboxylation cannot be reversed under normal physiological conditions, as the release of CO2 makes it energetically unfavorable to revert the reaction.
How is an exothermic reaction indicated on an equation?
An exothermic reaction is indicated in a chemical equation by showing the release of heat, often represented as a product. For example, in the equation ( A + B \rightarrow C + \Delta H ), the term ( \Delta H ) is negative, indicating that energy is released during the reaction. Additionally, it may note heat (or light) as a product, emphasizing the energy change associated with the reaction.
When enthalpy in a system decreases the reaction is considered to be .?
When enthalpy in a system decreases, the reaction is considered to be exothermic. In an exothermic reaction, heat is released to the surroundings, leading to a decrease in the internal energy of the system. This change in enthalpy is typically indicated by a negative value for the change in enthalpy (ΔH).
write the chemical equation for the decarboxylation of ethanoic acid?
The chemical equation for the decarboxylation of ethanoic acid (acetic acid) is CH3COOH → CH4 + CO2. This reaction typically requires high temperatures and produces methane and carbon dioxide as products.
