Question

1. Reaction 1 has a ΔG° of –12.3 kJ/mol, and Reaction 2 has a ΔG° of 23.4 kJ/mol. Which statement is TRUE of these two reactions?

Select one:

A. Reaction 1 occurs faster.

B. Reaction 2 occurs faster.

C. Both reactions occur at the same rate.

D. Reaction 2 will not occur.

E. It is impossible to know which reaction occurs faster with this information.

2. Fructose-1-phosphate can be hydrolyzed into fructose + inorganic phosphate (Pi) with a ΔG° of –16.0 kJ/mol. If ATP can be hydrolyzed into ADP + Pi with a ΔG° of –30.5 kJ/mol, what is the free energy change for the reaction of fructose + ATP → fructose 1-phospate + ADP?

Select one:

A. –14.5 kJ/mol

B. 46.5 kJ/mol

C. –1.4 Genetic Foundations5 kJ/mol

D. –46.5 kJ/mol

E. 14.5 kJ/mol

3.

The joining of two amino acids via a peptide bond (the process of protein synthesis) has a positive ΔG value. What does this imply?

Select one:

A. Forming a peptide bond is spontaneous and does not need to be coupled to another reaction.

B. Forming a peptide bond is endergonic and must be coupled to another reaction.

C. Forming a peptide bond is exergonic and must be coupled to another reaction.

D. Forming a peptide bond increases the entropy of a system.

E. Forming a peptide bond is spontaneous and can sometimes be coupled to another reaction.

Answer 1

1) Option A; Reaction 1 is faster