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Allosteric Effects
Amino Acid Metabolism
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ATP Synthesis and Fatty Acid Oxidation
Carbohydrate
Cell Signalling and Transduction
Cell Structure and Compartments
Chromatography
Disease Associated with Immune System
DNA Structure and Replication
Enzymes
FT IR Spectroscopy
Gas Chromatography
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Genetic Code and Regulation
Genetic Regulation Prokaryotes
Glycolysis
HPLC
Immune Response
Immune System
Immunological Techniques
Lipid
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Minerals
Nitrogen Metabolism
NMR Spectroscopy
Nucleic Acids
Oxidative Phosphorylation
Photosynthesis and Respiration
Polymerase Chain Reaction
Protein and Nucleic Acid Interactions
Protein Purification
Protein Stability
Protein Structure
Protein Synthesis
Recombinant DNA Technology
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Home⇒ Medical Science⇒ Biochemistry⇒ Thermodynamics and free energy
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ Reactions that have positive standard free energy changes (ΔGo> 0) can be made to occur in cells by all of the above [other wrong options] [Discuss in forum] coupling them with exergonic reactions via a common intermediate manipulating the concentrations of products and reactants such that G/<0 coupling them to the hydrolysis of ATP |
Q2 ⇒ The unfolding of regular secondary structure causes large increase in the entropy of the protein [other wrong options] [Discuss in forum] little increase in the entropy of protein large decrease in the entropy of the protein no change in the entropy of the protein |
Q3 ⇒ During the unfolding reaction of a helix, breakage of each hydrogen bond requires about 2kJ/mol. This implies hydrogen bonds are slightly stronger in proteins than in water [other wrong options] [Discuss in forum] much stronger in proteins than in water not reformed with water slightly weaker in proteins than in water |
Q4 ⇒ If the Standard Gibb's free energy, ΔG°, for a reaction is positive then the reactants will be favored [other wrong options] [Discuss in forum] the products will be favored the concentration of the reactants and products will be equal all of the reactant will be converted to product |
Q5 ⇒ The Standard Gibb's free energy, ΔG°, is the energy required to convert one mole of reactants to one mole of products [other wrong options] [Discuss in forum] the residual energy present in the reactants at equilibrium the residual energy present in the products at equilibrium the difference in the residual energy of reactants and products at equilibrium |
Q6 ⇒ If the enthalpy change for a reaction is zero, ΔG° is equal to -TΔS° [other wrong options] [Discuss in forum] TΔS° -ΔH° lnKeq |