https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/v/regulation-of-pyruvate-dehydrogenase 2023-08-14T21:12:46.061619254Z Regulation of pyruvate dehydrogenase Dive into the regulation of the citric acid cycle, exploring how Acetyl-CoA enters the cycle and gets oxidized into carbon dioxide. Uncover the irreversible reaction from pyruvate to Acetyl-CoA, and how it's a prime target for cellular regulation. Learn about the major roles of Acetyl-CoA and the allosteric regulation of the pyruvate dehydrogenase enzyme. Jasmine Rana video https://cdn.kastatic.org/googleusercontent/1yeF7rd9XYcHvQWRjeilCNMcn2uA3YovIWvmbqrvNfdZzT33N5IRLQD45vtBOopZbuyD57cDI3zSX_hT4B-VnlPm Regulation of pyruvate dehydrogenase Dive into the regulation of the citric acid cycle, exploring how Acetyl-CoA enters the cycle and gets oxidized into carbon dioxide. Uncover the irreversible reaction from pyruvate to Acetyl-CoA, and how it's a prime target for cellular regulation. Learn about the major roles of Acetyl-CoA and the allosteric regulation of the pyruvate dehydrogenase enzyme. https://cdn.kastatic.org/ka-youtube-converted/o0Bi_U_8T_E.mp4/o0Bi_U_8T_E.mp4 542 Aerobic respiration https://www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/pyruvate-oxidation-and-the-citric-acid-cycle/v/krebs-citric-acid-cycle 2021-03-18T10:33:24Z Krebs / citric acid cycle Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and  produces carbon dioxide, NADH, FADH2, and ATP or GTP.  Sal Khan video https://cdn.kastatic.org/googleusercontent/0KB0Agd6F4H0ZOH41kJ3KQZiTMNfo9KjBuT5jS0fhOSEMWPWjB9gOjtk_F-2D92IYvjrRI7RwyejjMdEinBRhjkJ Krebs / citric acid cycle Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and  produces carbon dioxide, NADH, FADH2, and ATP or GTP.  https://cdn.kastatic.org/ka-youtube-converted/juM2ROSLWfw.mp4/juM2ROSLWfw.mp4 1067 Aerobic respiration https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/e/krebs--citric-acid--cycle-and-oxidative-phosphorylation-questions 2021-06-05T01:46:49Z Krebs (citric acid) cycle and oxidative phosphorylation questions Krebs (citric acid) cycle and oxidative phosphorylation questions Lucas Philipp exercise https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/a/the-citric-acid-cycle-2 2021-05-25T21:59:57Z The citric acid cycle article https://www.khanacademy.org/science/revision-term-1-tg-botany-class-12/x4896182c249a2390:week-2/x4896182c249a2390:respiration/v/electron-transport-chain 2023-08-14T21:12:46.061619254Z Electron transport chain Explore the electron transport chain's role in cellular respiration. Learn how NADH and FADH2 contribute to ATP production. Discover how energy is released when electrons transition from high to low energy states, creating a proton gradient that drives ATP synthase. Dive into the cutting-edge research in this field. Sal Khan video https://cdn.kastatic.org/googleusercontent/GSL5FhUZuIhC8t_laxvLBLut_ZJpC96TZUrpm-vxtPXk_aKSWKELoRV8aSxAdX4_Pz7CyIwXEiniFO_WcilweRtp Electron transport chain Explore the electron transport chain's role in cellular respiration. Learn how NADH and FADH2 contribute to ATP production. Discover how energy is released when electrons transition from high to low energy states, creating a proton gradient that drives ATP synthase. Dive into the cutting-edge research in this field. https://cdn.kastatic.org/ka-youtube-converted/mfgCcFXUZRk.mp4/mfgCcFXUZRk.mp4 1036 Aerobic respiration https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/e/krebs-cycle-and-oxidative-phosphorylation---passage-1 2026-04-08T01:15:04.085520103Z Inhibiting the electron transport chain Rishi Desai exercise https://www.khanacademy.org/science/ap-biology/cellular-energetics/cellular-respiration-ap/a/oxidative-phosphorylation-etc 2021-04-29T07:51:30Z Oxidative phosphorylation Overview of oxidative phosphorylation. The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP via chemiosmosis. article https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/e/overview-of-metabolism---passage-1 2024-10-07T19:25:08.66686047Z Regulating electron carrier molecules Jasmine Rana exercise https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/v/regulation-of-krebs-tca-cycle 2023-08-14T21:12:46.061619254Z Regulation of Krebs-TCA cycle The citric acid cycle, always active to varying degrees, is crucial for ATP production. Acetyl-CoA enters the cycle, undergoes oxidations, and exits as carbon dioxide, producing FADH2 and NADH. This cycle is regulated through allosteric regulation and substrate availability, responding swiftly to the cell's energy needs. Jasmine Rana video https://cdn.kastatic.org/googleusercontent/R7JLO7OvgxS8tuORTAxFOnvFoYZkj8-m7ZEj7va5HO75U7u-BFdozrUOvAlQYisnnSJlIzUOLY8vsDX8Y4UlxUJoZw Regulation of Krebs-TCA cycle The citric acid cycle, always active to varying degrees, is crucial for ATP production. Acetyl-CoA enters the cycle, undergoes oxidations, and exits as carbon dioxide, producing FADH2 and NADH. This cycle is regulated through allosteric regulation and substrate availability, responding swiftly to the cell's energy needs. https://cdn.kastatic.org/ka-youtube-converted/e6dpcBpUNTY.mp4/e6dpcBpUNTY.mp4 705 Aerobic respiration https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/v/regulation-of-oxidative-phosphorylation 2023-08-14T21:12:46.061619254Z Regulation of oxidative phosphorylation Oxidative phosphorylation, a key cellular process, is regulated by the body's energy needs, specifically the levels of ADP and ATP. This process, which occurs in the mitochondria, efficiently produces ATP, a vital energy source for tissues like the brain and heart. It's the common end pathway of aerobic respiration, accepting various fuels like glucose and fatty acids. Jasmine Rana video https://cdn.kastatic.org/googleusercontent/3C1zpPmNvLPN50regIYERZ4_ojYgEyw--SloPPGD7hNw7oEiDAFTIagC4_R6vn7zoXiN2knTlLVK-5h5gkEdeL4B Regulation of oxidative phosphorylation Oxidative phosphorylation, a key cellular process, is regulated by the body's energy needs, specifically the levels of ADP and ATP. This process, which occurs in the mitochondria, efficiently produces ATP, a vital energy source for tissues like the brain and heart. It's the common end pathway of aerobic respiration, accepting various fuels like glucose and fatty acids. https://cdn.kastatic.org/ka-youtube-converted/d24GaPv6DkA.mp4/d24GaPv6DkA.mp4 590 Aerobic respiration https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-1/x01ceb15d0be61009:untitled-566/v/oxidative-phosphorylation-and-chemiosmosis 2023-08-14T21:12:46.061619254Z Oxidative phosphorylation and chemiosmosis Oxidative phosphorylation is a vital cellular respiration process that generates ATP. It involves the oxidation of NADH and FADH2 and phosphorylation. The process creates a hydrogen gradient, enabling chemiosmosis and ATP synthesis. This energy conversion is essential for all life forms, from bacteria to sharks. Sal Khan video https://cdn.kastatic.org/googleusercontent/MBMx374jDcyugF-fQOLAEk65QwPjpsVUKtKcT4-_UO5EWyOteo5eGlO5lWNmNmMSdM3k6wQe_nv9APS-xMqwOdWAHw Oxidative phosphorylation and chemiosmosis Oxidative phosphorylation is a vital cellular respiration process that generates ATP. It involves the oxidation of NADH and FADH2 and phosphorylation. The process creates a hydrogen gradient, enabling chemiosmosis and ATP synthesis. This energy conversion is essential for all life forms, from bacteria to sharks. https://cdn.kastatic.org/ka-youtube-converted/W_Q17tqw_7A.mp4/W_Q17tqw_7A.mp4 299 Aerobic respiration https://www.khanacademy.org/science/grade-11-biology-snc-aligned/x58c107ba92d3f0b2:domain-f-metabolism/x58c107ba92d3f0b2:aerobic-respiration/e/oxidative-phosphorylation-questions 2021-06-05T01:50:51Z Oxidative phosphorylation questions Oxidative phosphorylation questions Humberto Dutra exercise https://www.khanacademy.org/science/ap-biology/cellular-energetics/cellular-respiration-ap/v/oxidative-phosphorylation-and-the-electon-transport-chain 2023-08-07T17:09:37.131449861Z Oxidative phosphorylation and the electron transport chain Oxidative phosphorylation produces ATP (energy) in our cells. NADH, a molecule produced during cellular respiration, gets oxidized and releases electrons. These electrons pass through a series of acceptors in the electron transport chain, releasing energy. This energy pumps hydrogen protons across a membrane, creating a gradient. Finally, the enzyme ATP synthase uses this gradient to produce ATP. video https://cdn.kastatic.org/googleusercontent/R2_0PeTDFo0iVaiNgTASRo5Sjlpf2F-QnNtRprra5LH7E0ECZunhZpH6ecnPC--qZvn3iKHB3KD_E5dP-SXGasdd Oxidative phosphorylation and the electron transport chain Oxidative phosphorylation produces ATP (energy) in our cells. NADH, a molecule produced during cellular respiration, gets oxidized and releases electrons. These electrons pass through a series of acceptors in the electron transport chain, releasing energy. This energy pumps hydrogen protons across a membrane, creating a gradient. Finally, the enzyme ATP synthase uses this gradient to produce ATP. https://cdn.kastatic.org/ka-youtube-converted/J30zpvbmw7s.mp4/J30zpvbmw7s.mp4 937 Aerobic respiration https://www.khanacademy.org/science/ap-biology/cellular-energetics/cellular-respiration-ap/v/atp-synthase 2023-08-07T17:09:37.131449861Z ATP synthase ATP synthase is a membrane-bound enzyme that uses the flow of protons (H+) across a membrane to drive the synthesis of ATP from ADP and phosphate. It is found in mitochondria and chloroplasts, and plays a crucial role in cellular energy production and photosynthesis. video https://cdn.kastatic.org/googleusercontent/nKxBUrl4BVjCkAnpVoztHbOKuwuU-21LGkHB8iQzzJnJz3xf_3rHoqkSUUhO_vqWvg-RpoK9WqT4U2dey-vYh0muBA ATP synthase ATP synthase is a membrane-bound enzyme that uses the flow of protons (H+) across a membrane to drive the synthesis of ATP from ADP and phosphate. It is found in mitochondria and chloroplasts, and plays a crucial role in cellular energy production and photosynthesis. https://cdn.kastatic.org/ka-youtube-converted/rg8gpzFLQ-E.mp4/rg8gpzFLQ-E.mp4 267 Aerobic respiration https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-1/x01ceb15d0be61009:untitled-566/v/calculating-atp-produced-in-cellular-respiration 2023-08-14T21:12:46.061619254Z Calculating ATP produced in cellular respiration Unravel the mystery of ATP production in cellular respiration. Explore how glucose oxidation contributes to ATP synthesis, understand the roles of NADH and FADH2, and learn why ATP yield varies. Dive into the electron transport chain and the proton gradient's role in ATP synthase. Jasmine Rana video https://cdn.kastatic.org/googleusercontent/1p8v90lgbopznKPEOkqJW2YhlNF0yZRbgjvO61BxHF2kGRDmc1tEk5_3en2RPt4DlbzoDjOlepDR_QsuV-emQI8 Calculating ATP produced in cellular respiration Unravel the mystery of ATP production in cellular respiration. Explore how glucose oxidation contributes to ATP synthesis, understand the roles of NADH and FADH2, and learn why ATP yield varies. Dive into the electron transport chain and the proton gradient's role in ATP synthase. https://cdn.kastatic.org/ka-youtube-converted/OXgOsy8yQuk.mp4/OXgOsy8yQuk.mp4 925 Aerobic respiration