Question

9. Which of the statements about the formation of a peptide bond are true? Select all that apply. The reaction is anabolie. The reaction is spontaneous The reaction has a positive AG The reaction is endergonic 10. What are the functions of an enme Select all that apply. to allow a reaction to be reversible to increase the rate of a specific reaction to alter the equilibrium of a specific reaction to lower the activation energy for the reaction to alter the AG of a specific reaction

please answer #9 &#10

Answer 1

Answer 9:

Peptide bond is the bond which forms between two amino acid. Thus the reaction is anabolic (build up reaction).

Peptide bond formation requires energy in the form of ATP, thus the reaction is not spontaneous. Also, as energy is required, ∆G will be positive. Reactions which need external energy are called endergonic reactions.

Thus, the correct choices should be:

The reaction is anabolic. The reaction has a positive ∆G. The reaction is endergonic.

Answer 10:

Enzymes are catalysts which speed up a chemical reaction. It does so by lowering the activation energy for the reaction.

It doesn't change the final energies of substrate or products, thus it doesn't alter ∆G or equilibrium state.

The correct choices should be:

To increase the rate of a reaction. To lower the activation energy for the reaction.

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