Chat with AIExam 10: Lipids, Membranes, and Cellular Transport
Exam 1: Biochemistry and the Language of Chemistry13 Questions
Exam 2: The Chemical Foundation of Life: Weak Interactions in an Aqueous Environment22 Questions
Exam 3: The Energetics of Life17 Questions
Exam 4: Nucleic Acids20 Questions
Exam 5: Introduction to Proteins: the Primary Level of Protein Structure19 Questions
Exam 6: The Three-Dimensional Structure of Proteins22 Questions
Exam 7: Protein Function and Evolution22 Questions
Exam 8: Enzymes: Biological Catalysts40 Questions
Exam 9: Carbohydrates: Sugars, Saccharides, Glycans15 Questions
Exam 10: Lipids, Membranes, and Cellular Transport22 Questions
Exam 11: Chemical Logic of Metabolism15 Questions
Exam 12: Carbohydrate Metabolism: Glycolysis, Gluconeogenesis, Glycogen Metabolism, and the Pentose Phosphate Pathway26 Questions
Exam 13: The Citric Acid Cycle17 Questions
Exam 14: Electron Transport, Oxidative Phosphorylation, and Oxygen Metabolism19 Questions
Exam 15: Photosynthesis16 Questions
Exam 16: Lipid Metabolism24 Questions
Exam 17: Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates15 Questions
Exam 18: Amino Acid and Nitrogen Metabolism24 Questions
Exam 19: Nucleotide Metabolism18 Questions
Exam 20: Mechanisms of Signal Transduction14 Questions
Exam 21: Genes, Genomes, and Chromosomes16 Questions
Exam 22: DNA Replication21 Questions
Exam 23: DNA Repair, Recombination, and Rearrangement23 Questions
Exam 24: Transcription and Post-Transcriptional Processing26 Questions
Exam 25: Information Decoding: Translation and Post-Translational Protein Processing22 Questions
Exam 26: Regulation of Gene Expression32 Questions
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The Na+-K+ ATPase uses the free energy of ATP hydrolysis in an active transport process to move Na+ and K+ across a membrane. What would the rate of nonmediated transport be given that the permeability coefficient for K+ through a human erythrocyte membrane is 2.4 × 10-10 cm/s. K+ ions must be moved from a concentration of 4 mM on the outside of the cell to 155 mM inside the cell?
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(89) The standard free energy that is required for the sodium-potassium ATPase to pump two K+ ions into the cell and three Na+ ions is +43.8 kJ/mol but the standard free energy change of hydrolysis of ATP is only -32 kJ/mol. This apparent imbalance of free energy can be accounted for because:
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