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 CO 2

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 products ProcessATPNADHFADHCO2 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 products ProcessATPNADHFADHCO2 Glycolysis22-- Oxidative decarboyxlyation -2-2 Kreb’s2624 ETC34