Reactants

... form the product. So I really think you answered the question in your first paragraph. An enzyme’s selective three dimensional shape, brings the reactants (or substrates) closer together into its active site, This is the alternative route, and: allowing the chemical bonds to weaken and change ...

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... greatly decrease the activation energy in 2 distinct ways: i. Lowering required energy: An enzyme’s selective three dimensional shape, brings the reactants (or substrates) closer together into its active site, therefore allowing the chemical bonds to weaken and change with less energy. An enzyme ...

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Ok well here is a useful tip...before you look at all the products and reactants of the Kreb's cycle and get confused....ask yourself this: Why does a cell undergo a metabolic process such as the Kreb Cycle? What is the purpose of this cycle? Does it produce ...

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... destroy catabolism is breaking down hope that helps? and you can measure the rate of a reaction by the appearance of products or disappearance of reactants

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... are not an option as they would denature enzymes. Fortunately, enzymes can themselves lower the activation energy needed for a reaction by holding reactants in electrospatial environments that promote the reaction, allowing the reaction to proceed at physiological temperatures.

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