The isomerisation of citrate to isocitrate in the TCA cycles
Enzymes are biological catalysts which cause the rate of a reaction to increase (by providing an alternate reaction pathway with a lower activation enthalpy). They are very specific to the reaction they catalyse.
Usually enzymes have the role to catalyse a reaction. That means they aren't changed at all, but they influence the mechanism to reduce the activation energy (the energy needed for the reaction). The reaction is therefore performed more easily. To put it very simply: It speeds up a chemical reaction.
by lowering activation energy to increase the reactionEnzymes are biological catalysts, and can hence lower the activation energy barrier of the reaction that it catalyses. Enzymes do this in several ways:1) Enzymes can provide a suitable environment for the reaction to take place. The active site of a enzyme can be highly acidic (pH
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Enzymes catalyse biochemical reaction by lowering the activation energy.
is to catalyse or increase the rate of reaction without any change in itself .
catalyse the reaction.
it provides the H+ ions to catalyse the reaction
Usually enzymes have the role to catalyse a reaction. That means they aren't changed at all, but they influence the mechanism to reduce the activation energy (the energy needed for the reaction). The reaction is therefore performed more easily. To put it very simply: It speeds up a chemical reaction.
Actually, enzymes are typically used to catalyse a biological reaction, leading to a faster reaction rate, not slower.
Enzymes aren't used up or denatured after they catalyse a reaction.
it provides the H+ ions to catalyse the reaction
They lower the activation energy needed to kick off the reaction and hence make the reaction proceed faster.
Metal ions catalyse the reaction
Aconitase is another name for aconitate hydratase, an enzyme which catalyzes the stereospecific isomerization of citrate to isocitrate via cis-aconitate in the tricarboxylic acid cycle.
Enzymes are biological catalysts which cause the rate of a reaction to increase (by providing an alternate reaction pathway with a lower activation enthalpy). They are very specific to the reaction they catalyse.