ncawwnorton.com Smartwork5 Activity 10/27/17 Question (1 point) 1st attempt Eval

Question

ncawwnorton.com Smartwork5 Activity 10/27/17 Question (1 point) 1st attempt Evaluate which of the following statements is/are true about enzymes and the transition from reactants to products Choose one or more: A. One enzyme is needed for every substrate molecule in order to catalyze the reaction. state theory states that in the transition state. the molecule can elther become a product or remain a substrate, and this reaction intermediate can be physically isolated for short periods of time in both enzymatic and non-enzymatic reactions energetically unfavorable as it would be without the presence of an enzyme constant of a reaction C. An enzyme lowers the activation eneray of a reaction, which means the transition state is not as D. An enzyme does not change the energy of the reactants or product, nor does it change the equilibriunm 05 o > MacBook Ai

Explanation / Answer

(A)

This is false because a single enzyme can catalyze a reaction involving multiple substrates.

(B)

This is false, because a transition state cannot be isolated because it has practically no lifetime.

(C)

This is true, because this is the basic mechanism by which the enzyme catalyzes a reaction. It provides an alternative pathway which is less demanding in terms of activation energy, and hence the transition state is also less unfavorable in presence of the enzyme.

(D)

This is true, because the sole purpose of the enzyme is to provide a pathway which has a lower activation energy value, and it does not affect the equilibrium constant value.

Hope this helps !

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