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Respiration
Find the mitochondrion
Mitochondrion structure
Why does cell respiration matter?
• Converts all the forms of energy that we take in (food) into one form of energy for all cell processes.
Power Plant analogy
Other effects of respiration
• Source of our body temperature.
• The rate of respiration changes when we get a fever or exercise.
4 metabolic processes
• Glycolysis
• Oxidative decarboxylation
• Krebs (Citric Acid) cycle
• Electron Transport Chain/ Oxidative Phosphorylation
Glycolysis
• Big word little meaning
• Glyco- sugar
• Lys- breakdown
Oxidative decarboxylation
• Ox- presence of oxygen
• De – without, to lose
• Carb- carbon– Using oxygen to remove carbon results in CO2
phosphorylation
• Adding a phosphate to a molecule. – Oxidative phosphorylation– Photo phosphorylation– ATP phosphorylates enzymes
Phases of Respiration • In cytoplasm
– Glycolysis- is UNIVERSAL
• In Mitochondria– Oxidative Decarboxylation in matrix– Kreb’s Cycle- in matrix– ETC and OP on inner membrane
Respiration summary
Summary of productsProcess ATP NADH FADH CO2
Glycolysis - -
Oxidative
decarboxylation
- -
Kreb’s
ETC
Glycolysis summary
• One glucose 2 pyruvate
• two ATP are used, but four are produced, which nets 2 ATP
• 2 NAD+ are converted to NADH + H+
Glycolysis details 1
Glycolysis details 2
NAD as electron carrier
Oxidative Decarboxylation and Krebs cycle
Krebs details
Chemiosmosis
Happens in both photosynthesis and cell respiration
Electron transport chain
Summary of productsProcess ATP NADH FADH CO2
Glycolysis 2 2 - -
Oxidative
decarboyxlyation
- 2 - 2
Kreb’s 2 6 2 4
ETC 34