%20Biochemistry/Biochemistry%20-Thermodynamics%20and%20Free%20Energy Sample Test,Sample questions

Question:
During the unfolding reaction of a helix; breakage of each hydrogen bond requires about 2kJ/mol. This implies hydrogen bonds are

1.much stronger in proteins than in water

2.not reformed with water

3.slightly weaker in proteins than in water

4.slightly stronger in proteins than in water

Posted Date:-2021-02-25 09:28:35


Question:
Reactions that have positive standard free energy changes (ΔGo> 0) can be made to occur in cells by

1. coupling them with exergonic reactions via a common intermediate

2. manipulating the concentrations of products and reactants such that G/<0

3.coupling them to the hydrolysis of ATP

4.all of the above

Posted Date:-2021-02-25 09:28:35


Question:
The Standard Gibb's free energy; ΔG°; is

1.the residual energy present in the reactants at equilibrium

2.the residual energy present in the products at equilibrium

3. the difference in the residual energy of reactants and products at equilibrium

4.the energy required to convert one mole of reactants to one mole of products

Posted Date:-2021-02-25 09:28:35


Question:
The unfolding of regular secondary structure causes

1. little increase in the entropy of protein

2.arge decrease in the entropy of the protein

3.no change in the entropy of the protein

4.large increase in the entropy of the protein

Posted Date:-2021-02-25 09:28:35


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