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2009-10-26 05:17:37
2009-10-26 05:17:37

The Transition Reaction converts the two molecules of the 3-carbon pyruvate from glycolysis into two molecules of the 2-carbon molecule acetyl Coenzyme A (acetyl-CoA).

Transition Reaction is also called Oxidative Decarboxylation. It takes place in the matrix of the mitochondria. It is the beginning of aerobic respiration, meaning this phase will continue to take place as long as there is a sufficient amount of oxygen available in the mitochondria. If there is not then the process of fermentation will begin.


Related Questions

Sublimation is not a chemical reaction but a phase transition phenomenon; the reverse phenomenon is named deposition.

Every reaction in which bonds are broken will have a high energy transition state.

It lowers the energy required to enter the transition state, thus fastening the speed of the reaction.

It takes place in the cristae, which are found on the matrix of the mitochondrion.

Enzymes are thought to function primarily by stabilizing the transition state of the reaction. By binding the transition state more tightly than either the substrates or the products, the enzyme lowers the energy barrier of the reaction. Thus a transition state analog will bind more tightly to the enzyme than either the substrates or the products, preventing them from binding to the enzyme and reacting.

It lowers the energy barrier needed for reactants to achieve the transition state or lowers the energy of activation of a reaction.

Activation energy. The kinetic energy from collisions between particles is used to reach the transition state

The transition stage is the stage of a reaction where atoms have the highest energy. A covalent bond forms when atoms share electrons.

All enzymes work in theory by lowering the ΔG of a reaction. Every reaction has a ΔG, which is basically the "bump" the initial reaction energy must overcome before the reaction can proceed. The form the substrates are in during the instant it is overcoming the bump is called the transition state, many enzymes work by stabilizing this state. More specifically, enzymes can mechanistically act in several ways, all of which lower ΔG: # Lowering the activation energy by creating an environment in which the transition state is stabilized (e.g. straining the shape of a substrate-by binding the transition-state conformation of the substrate/product molecules, the enzyme distorts the bound substrate(s) into their transition state form, thereby reducing the amount of energy required to complete the transition). # Lowering the energy of the transition state, but without distorting the substrate, by creating an environment with the opposite charge distribution to that of the transition state. # Providing an alternative pathway. For example, temporarily reacting with the substrate to form an intermediate ES complex, which would be impossible in the absence of the enzyme. # Reducing the reaction entropy change by bringing substrates together in the correct orientation to react. Considering ΔH alone overlooks this effect.

Catalysts are said to reduce the energy of activation during the transition phase of a reaction.

A chemical reaction (combustion of gunpowder); Newton's laws of motion; the varying spectrums of transition metal compounds.

When two molecules react with each other they must form a transition state. The higher the energy of the transition state the less likely it is for the two molecules to react with each other. Catalysts lower the energy of the transition state. This makes it more likely for molecules to react with one another, which speeds up the overall reaction. Entropy is unrelated. Reactions that break apart molecules increase entropy. Reactions that combine molecules together diminish entropy. Both types of reactions can be sped up by catalysts.

No. Boiling is a physical state transition (phase change) and not a rearrangement of the internal molecular structure (chemical reaction) of the various molecules that make up liquid air.

why transition elements called transition elements

Enzymes lower the activation energy, thereby increasing the rate of the reaction. This is generally because the enzyme binds the reactants and brings them closer together and in the proper orientation for the reaction to occur. Enzymes also generally stabilize the transition state of the reaction, making the reaction more likely to continue to completion.

There is no such thing as an outer transition element, only transition and inner transition.

You may be talking about the activated complex, which is a kind of unstable "molecule" that is a transition state between the products and the reactants in a reaction.

may be defined as 1. Concerted reaction that proceed via a cyclic transition state 2. No distinct intermediates in the reaction 3. Bond forming and bond breaking steps are simultaneous but not necessarily synchronous

Yes, transition metals are the same thing as transition elements.

A catalyst decreases the threshold energy for a chemical reaction. A catalyst decreases energy required for two particles to react. A catalyst lowers the amount of energy needed to reach the transition state.

You may use KSIE to determine if one or more protons are moved at the transition state of a reaction.

enzyme is a kind of protein that catalyzes specific reactions & abzymes are antibodies that target the transition state of an expected reaction.

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