Given the pKa values for phosphoric acid of 2.14, 6.86 and 12.4, what is the ratio of HPO42-/H2PO4- in a typical muscle cell where the pH is 7.2?

A) 0.46 B) 2.2 C) 6.3 * 10-6 D) 1.1 * 105 E) none of the above A) 0.46 B) 2.2 C) 6.3 * 10-6 D) 1.1 * 105 E) none of the above

Topic
Biology
Study-set
Biochemistry Study Set 4

Exam 2: The Matrix of Life: Weak Interactions in an Aqueous Environment

Exam 1: The Scope of Biochemistry17 Questions

Exam 2: The Matrix of Life: Weak Interactions in an Aqueous Environment25 Questions

Exam 3: The Energetics of Life25 Questions

Exam 4: Nucleic Acids28 Questions

Exam 5: Introduction to Proteins: the Primary Level of Protein Structure25 Questions

Exam 6: The Three-Dimensional Structure of Proteins24 Questions

Exam 7: Protein Function and Evolution27 Questions

Exam 8: Contractile Proteins and Molecular Motors19 Questions

Exam 9: Carbohydrates: Sugars, Saccharides, Glycans28 Questions

Exam 10: Lipids, Membranes and Cellular Transport25 Questions

Exam 11: Enzymes: Biological Catalysts24 Questions

Exam 12: Chemical Logic of Metabolism25 Questions

Exam 13: Carbohydrate Metabolism: Glycolysis, Gluconeogenesis, Glycogen Metabolism, and the Pentose Phosphate Pathway41 Questions

Exam 14: Citric Acid Cycle and Glyoxylate Cycle25 Questions

Exam 15: Electron Transport, Oxidative Phosphorylation, and Oxygen Metabolism24 Questions

Exam 16: Photosynthesis26 Questions

Exam 17: Lipid Metabolism I: Fatty Acids, Triacylglycerols, and Lipoproteins26 Questions

Exam 18: Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates22 Questions

Exam 19: Lipid Metabolism Ii: Membrane Lipids, Steroids, Isoprenoids, and Eicosanoids25 Questions

Exam 20: Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, Utilization, and Turnover25 Questions

Exam 21: Metabolism of Nitogenous Compounds II: Amino Acids, Porphyrins, and Neurotransmitters25 Questions

Exam 22: Nucleotide Metabolism25 Questions

Exam 23: Mechanisms of Signal Transduction24 Questions

Exam 24: Genes, Genomes and Chromosomes25 Questions

Exam 25: DNA Replication25 Questions

Exam 26: DNA Restructuring: Repair, Recombination, Rearrangement, Amplification25 Questions

Exam 27: Information Readout: Transcription and Post-Transcriptional Processing25 Questions

Exam 28: Information Decoding: Translation and Post-Translational Protein Processing28 Questions

Exam 29: Regulation of Gene Expression25 Questions

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Given the pK_a values for phosphoric acid of 2.14, 6.86 and 12.4, what is the ratio of HPO₄^2-/H₂PO₄^- in a typical muscle cell where the pH is 7.2?

(Multiple Choice)

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Question 21

Which of the following represents the breaking of a noncovalent interaction?

(Multiple Choice)

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Question 22

A typical amino acid has a carboxylic acid and an amine with pK_a values of 2.3 and 9.6, respectively. In a solution of pH 4.5, which of the following best describes the protonation and charge state of the amino acid?

(Multiple Choice)

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Question 23

What happens to DNA when placed into an aqueous solution at physiological pH?

(Multiple Choice)

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Question 24

Which of the following is the most likely noncovalent interaction observed between a carboxylic acid and an alcohol?

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Question 25

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Exam 2: The Matrix of Life: Weak Interactions in an Aqueous Environment

Given the pKa values for phosphoric acid of 2.14, 6.86 and 12.4, what is the ratio of HPO42-/H2PO4- in a typical muscle cell where the pH is 7.2?

Which of the following represents the breaking of a noncovalent interaction?

A typical amino acid has a carboxylic acid and an amine with pKa values of 2.3 and 9.6, respectively. In a solution of pH 4.5, which of the following best describes the protonation and charge state of the amino acid?

What happens to DNA when placed into an aqueous solution at physiological pH?

Which of the following is the most likely noncovalent interaction observed between a carboxylic acid and an alcohol?

The Scope of Biochemistry

The Energetics of Life

Nucleic Acids

Introduction to Proteins: the Primary Level of Protein Structure

The Three-Dimensional Structure of Proteins

Protein Function and Evolution

Contractile Proteins and Molecular Motors

Carbohydrates: Sugars, Saccharides, Glycans

Lipids, Membranes and Cellular Transport

Enzymes: Biological Catalysts

Chemical Logic of Metabolism

Carbohydrate Metabolism: Glycolysis, Gluconeogenesis, Glycogen Metabolism, and the Pentose Phosphate Pathway

Citric Acid Cycle and Glyoxylate Cycle

Electron Transport, Oxidative Phosphorylation, and Oxygen Metabolism

Photosynthesis

Lipid Metabolism I: Fatty Acids, Triacylglycerols, and Lipoproteins

Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Lipid Metabolism Ii: Membrane Lipids, Steroids, Isoprenoids, and Eicosanoids

Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, Utilization, and Turnover

Metabolism of Nitogenous Compounds II: Amino Acids, Porphyrins, and Neurotransmitters

Nucleotide Metabolism

Mechanisms of Signal Transduction

Genes, Genomes and Chromosomes

DNA Replication

DNA Restructuring: Repair, Recombination, Rearrangement, Amplification

Information Readout: Transcription and Post-Transcriptional Processing

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

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Given the pK_a values for phosphoric acid of 2.14, 6.86 and 12.4, what is the ratio of HPO₄^2-/H₂PO₄^- in a typical muscle cell where the pH is 7.2?

A typical amino acid has a carboxylic acid and an amine with pK_a values of 2.3 and 9.6, respectively. In a solution of pH 4.5, which of the following best describes the protonation and charge state of the amino acid?