Lecture notes - Cell And Molecular Biology (Respiration part 2) - using Becker's World of the Cell, Global Edition
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Cell And Molecular Biology
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Manchester Metropolitan University (MMU)
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Becker\'s World of the Cell, Global Edition
(Use with the metabolsim/respiration part 1 set of notes!)
If you're studying a life science (e.g. - biomed, bioscience, physiology, sports science, sports physiology etc), then this detailed set of lecture notes on metabolism, respiration and ATP will help you smash your first set of exams on c...
Test Bank for Becker's World of the Cell 10th edition by Jeff Hardin & James Lodolce Chapters 1-26 , ISBN: 9780135832011 |All Chapters Verified| Guide A+
Test Bank - Becker's World of the Cell, 10th Edition by Jeff Hardin, All Chapter 1-26 | Complete Guide A+
Lecture notes - Cell And Molecular Biology (Cilia and Mitochondria)- Using Becker's World of the Cell, Global Edition
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Glycolysis:
Glycolysis = sugar splitting – 6 C12 = broken down into 2 X 312 – (2 X Pyruvate) – Occurs in cytosol
(cytoplasmic matrix)
Phosphorylation addition makes a molecule more chemically reactive
2 stages in Glycolysis:
Energy investment phase:
- 1 X ATP used to convert Glucose into Glucose 6-phosphate (Hexokinase enzyme catalysation)
- Glucose Phosphate is converted into Fructose 6-phosphate (Phosphoglucoisomerase enzyme
catalysation)
- 1 X ATP used to convert Fructose 6-phosphate into Fructose 1,6-bisphosphate
(Phosphofructokinase enzyme catalysation)
- Aldolase enzyme converts this into 2 x 3 C12 molecule
Energy payoff phase:
(Very complex process – use textbook diagrams) But in summary:
- In a series of reactions – G3P = converted into Pyruvate
- H+ combines with NAD forming NADH
- ADP + Pi combines to form ATP
- Several enzymes used in this process
During Glycolysis:
- No C12 released as CO2
- Glycolysis occurs regardless of the presence of O2
Citric acid/Krebs cycle:
Pyruvate enters mitochondrion via active transport
Converted into acetyl CoA via 3 catalysed reactions:
- Carboxyl group on Pyruvate = fully oxidised – released as CO2 molecule
- Remaining 2C12 molecule = oxidised, E- transferred to NAD+ forming NADH (stores energy)
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