Chemical Logic Of Metabolism - Biochemistry Concepts and Connections | Biology+

Course

Biochemistry

Study Pack

Set 1: Biochemistry and the Language of Chemistry

Set 2: The Chemical Foundation of Life: Weak Interactions in an Aqueous Environment

Set 3: The Energetics of Life

Set 4: Nucleic Acids

Set 5: Introduction to Proteins: the Primary Level of Protein Structure

Set 6: The Three-Dimensional Structure of Proteins

Set 7: Protein Function and Evolution

Set 8: Enzymes: Biological Catalysts

Set 9: Carbohydrates: Sugars, Saccharides, Glycans

Set 10: Lipids, Membranes, and Cellular Transport

Set 11: Chemical Logic of Metabolism

Set 12: Carbohydrate Metabolism: Glycolysis, Gluconeogenesis, Glycogen Metabolism, and the Pentose Phosphate Pathway

Set 13: The Citric Acid Cycle

Set 14: Electron Transport, Oxidative Phosphorylation, and Oxygen Metabolism

Set 15: Photosynthesis

Set 16: Lipid Metabolism

Set 17: Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Set 18: Amino Acid and Nitrogen Metabolism

Set 19: Nucleotide Metabolism

Set 20: Mechanisms of Signal Transduction

Set 21: Genes, Genomes, and Chromosomes

Set 22: DNA Replication

Set 23: DNA Repair, Recombination, and Rearrangement

Set 24: Transcription and Post-Transcriptional Processing

Set 25: Information Decoding: Translation and Post-Translational Protein Processing

Set 26: Regulation of Gene Expression

Set 11 Chemical Logic Of Metabolism

✕

Set 11 Chemical Logic Of Metabolism

(True False)

Free

Substrate-level phosphorylation is a term given to the loss of free energy when ATP is hydrolyzed.

Answer

(Multiple Choice)

Free

A futile cycle is:

A) the citric acid cycle.
B) two reactions or pathways that share substrates and products, and result in no net gain of ATP.
C) two opposing cellular reactions that are independently controlled.
D) an endergonic reaction that uses up ATP.
E) the reoxidation of NAD+ from NADH.

Answer

(Short Answer)

Free

Calculate the amount of ATP in kg that is turned over by a resting human every 24 hours. Assume that a typical human contains ~50g of ATP (Mr 505) and consumes ~8000 kJ of energy in food each day. The energy stored in the terminal anhydride bond of ATP under standard conditions is 30.6 kJmol-1. Assume also that the dietary energy is channeled through ATP with an energy transfer efficiency of ~50%.

Answer