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Lecture

ATP Synthase: Structure and Function

In course

BIO-109: Introduction to life sciences (for IC)

Ce cours présente les principes fondamentaux à l'œuvre dans les organismes vivants. Autant que possible, l'accent est mis sur les contributions de l'Informatique aux progrès des Sciences de la Vie. ...

Description

This lecture covers the structure and function of ATP synthase, focusing on its role in mitochondrial ATP production. It explains the process of ATP synthesis, the movement of protons, and the generation of ATP. Additionally, it delves into the details of glucose metabolism, glycolysis, and the citric acid cycle. The lecture also discusses the structure of nucleotides, nucleic acids, and the base pairing rules in DNA and RNA.

Instructor

Romain Zufferey

Official source

Ontological neighbourhood

Biology

Cell biology: Cell metabolism

Related concepts (32)

ATP synthase

ATP synthase is a protein that catalyzes the formation of the energy storage molecule adenosine triphosphate (ATP) using adenosine diphosphate (ADP) and inorganic phosphate (Pi). ATP synthase is a molecular machine. The overall reaction catalyzed by ATP synthase is: ADP + Pi + 2H+out ATP + H2O + 2H+in ATP synthase lies across a cellular membrane and forms an aperture that protons can cross from areas of high concentration to areas of low concentration, imparting energy for the synthesis of ATP.

RNA

Ribonucleic acid (RNA) is a polymeric molecule that is essential for most biological functions, either by performing the function itself (Non-coding RNA) or by forming a template for production of proteins (messenger RNA). RNA and deoxyribonucleic acid (DNA) are nucleic acids. The nucleic acids constitute one of the four major macromolecules essential for all known forms of life. RNA is assembled as a chain of nucleotides.

Oxaloacetic acid

Oxaloacetic acid (also known as oxalacetic acid or OAA) is a crystalline organic compound with the chemical formula HO2CC(O)CH2CO2H. Oxaloacetic acid, in the form of its conjugate base oxaloacetate, is a metabolic intermediate in many processes that occur in animals. It takes part in gluconeogenesis, the urea cycle, the glyoxylate cycle, amino acid synthesis, fatty acid synthesis and the citric acid cycle. Oxaloacetic acid undergoes successive deprotonations to give the dianion: HO2CC(O)CH2CO2H −O2CC(O)CH2CO2H + H+, pKa = 2.

Citric acid cycle

The citric acid cycle —also known as the Krebs cycle, Szent-Györgyi-Krebs cycle or the TCA cycle (tricarboxylic acid cycle)—is a series of chemical reactions to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins. The Krebs cycle is used by organisms that respire (as opposed to organisms that ferment) to generate energy, either by anaerobic respiration or aerobic respiration. In addition, the cycle provides precursors of certain amino acids, as well as the reducing agent NADH, that are used in numerous other reactions.

Pyruvic acid

Pyruvic acid (IUPAC name: 2-oxopropanoic acid, also called acetoic acid) (CH3COCOOH) is the simplest of the alpha-keto acids, with a carboxylic acid and a ketone functional group. Pyruvate, the conjugate base, CH3COCOO−, is an intermediate in several metabolic pathways throughout the cell. Pyruvic acid can be made from glucose through glycolysis, converted back to carbohydrates (such as glucose) via gluconeogenesis, or converted to fatty acids through a reaction with acetyl-CoA.

Related lectures (30)

Glycolysis and Krebs Cycle

Explains glycolysis, fermentation, Krebs cycle, ATP production, and electron transport chain in mitochondria.

Glucose Metabolism: ATP Production and Electron Transport Chain

Explores the metabolism of fat and sugars into acetyl-CoA and the ATP production from glucose.

Nucleic Acids: Structure and Function

Explores the structure and function of nucleic acids, focusing on DNA and RNA, including base pairing rules and the double helix structure.

Cellular Respiration: Energy Production and ATP Synthesis

Explores cellular respiration, energy production from glucose, ATP synthesis, and metabolism of fuel sources.

Nucleotides: Structure and Function

Covers the structure of nucleotides, DNA, RNA, base pairing, and protein synthesis.

Related concepts (32)