Biology WJEC Aerobic Respiration
- Created by: Katy
- Created on: 09-11-12 11:13
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- Aerobic respiration
- Adenosine Triphosphate - Adenine, Ribose, 3 Phosphate groups
- ATP needed for: Metabolic processes,(synthesis of protein and DNA), active transport, nervous transmission, secretion, glycolysis
- ATP needed for: Metabolic processes,(synthesis of protein and DNA), active transport, nervous transmission, secretion, glycolysis
- Glycolysis
- Cytoplasm
- Phosphate molecule added to glucose - Hexose Phosphate
- Hexose Phosphate split into 2x Tripose Phosphate
- Net Gain: 2 ATP molecules, 2NADH
- Link Reaction
- Pyruvate diffuses into mitochondrial matrix
- Pyruvate decarboxylated and dehydrogenated
- 2 Carbon acetate combines with coenzyme A to form acetyl CoA
- Pyruvate decarboxylated and dehydrogenated
- Pyruvate diffuses into mitochondrial matrix
- Krebs Cycle
- Acetyl CoA combines with 4C acid
- Undergoes series of reactions. Two steps involve decarboxylation. Four steps involve dehydrogenation.
- Three molecules of NADH formed, 1 molecule of FADH formed (per turn)
- Undergoes series of reactions. Two steps involve decarboxylation. Four steps involve dehydrogenation.
- Acetyl CoA combines with 4C acid
- Electron Transport Chain
- Series of carriers and pumps releasing energy in the form of ATP
- H atoms split into protins and electrons
- Electrons transferred along electron carrierseach at lower energy level than previous one
- Protons pumped from matrix into intermembrane space - sets up electrochemical gradient
- Protons diffuse into matrix via ATP syhthetase
- Electrons taken up by oxygen which combines with protons to form water
- Protons diffuse into matrix via ATP syhthetase
- Protons pumped from matrix into intermembrane space - sets up electrochemical gradient
- Electrons transferred along electron carrierseach at lower energy level than previous one
- H atoms split into protins and electrons
- Series of carriers and pumps releasing energy in the form of ATP
- Adenosine Triphosphate - Adenine, Ribose, 3 Phosphate groups
- Glycolysis
- Cytoplasm
- Phosphate molecule added to glucose - Hexose Phosphate
- Hexose Phosphate split into 2x Tripose Phosphate
- Net Gain: 2 ATP molecules, 2NADH
- Pyruvate diffuses into mitochondrial matrix
- Pyruvate decarboxylated and dehydrogenated
- 2 Carbon acetate combines with coenzyme A to form acetyl CoA
- Pyruvate decarboxylated and dehydrogenated
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