Mitochondrial Biology and Genetics Study Guide
This guide covers the fundamental aspects of mitochondrial biology, including their structure and function in energy production through oxidative phosphorylation and the electron transport chain. It delves into the unique genetic makeup of mitochondria (mtDNA), the process of reductive evolution, and the consequences of mtDNA mutations, such as mitochondrial depletion syndrome and mitochondrial myopathies. The guide also explains the critical concept of maternal inheritance of mtDNA and its impl
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Respiration, Fermentation, and ATP Production
Respiration and Fermentation Overview
Overview of cellular respiration involving aerobic and anaerobic processes, NADH, FADH2, and the mitochondrial electron transport chain.
- Aerobic respiration
- Anaerobic respiration
- Cellular respiration
- FADH2
- Electron Transport Chain
- Mitochondrial Electron Transport Chain
- Oxygen as final electron acceptor
ATP Production and Mitochondrial Function
Cells use aerobic respiration and fermentation to generate ATP from the breakdown of food.
- ATP production
- Aerobic respiration
- Fermentation
- Mitochondria
- Glucose breakdown
- FADH2
- Electron transport chain
- Proton gradient
Glycolysis and Pyruvate Fate
One molecule of 6C glucose is broken down to 2 molecules of pyruvate in 10 separate enzymatic steps occurring in the cytoplasm.
- Glycolysis
- Glucose
- Pyruvate
- ATP
- Cytoplasm
- Enzymatic steps
- Oxygen availability
Respiration and the Krebs Cycle
The Krebs cycle occurs in the mitochondrial matrix to produce ATP, NADH, and FADH2 from acetyl-CoA.
- Krebs cycle
- mitochondrial matrix
- acetyl-CoA
- ATP
- FADH2
- pyruvate
- electron transport chain
Respiration and the Electron Transport Chain
The electron transport chain uses NADH and FADH2 to facilitate oxidative phosphorylation and ATP production through the proton gradient.
- Electron Transport Chain
- Oxidative phosphorylation
- ATP Synthase
- FADH2
- Intermembrane space
- Electronegativity
- Oxygen
- Proton gradient
- Cellular respiration
- Krebs cycle
- Glycolysis
Anaerobic Pathways and Fermentation Processes
Respiration and Fermentation Processes
Cells use glycolysis and fermentation to break down glucose for energy in the absence of oxygen.
- pyruvate
- anaerobic conditions
- glycolysis
- alcoholic fermentation
- ATP production
- lactic acid fermentation
Cellular Respiration and Fermentation: Energy Production Pathways
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Mitochondrial DNA, Inheritance, and Disease
Mitochondrial Function and Genetic Inheritance
Mitochondria contain their own DNA and make essential proteins used in the electron transport chain and oxidative phosphorylation.
- Electron transport chain
- Cytochrome c oxidase
- Cyanide enzyme inhibition
- Mitochondrial DNA inheritance
- Mitochondrial depletion syndrome
- Mitochondrial myopathies
- Oxidative phosphorylation
- Reductive evolution
Mitochondrial Function, Genetics, and Disease
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