2.8: Cell respiration. Recap: structure of ATP P P P riboseguanineinorganic phosphate deoxyribosethymine organic phosphate nicotinamidecytosineadenineflavine.

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Presentation transcript:

2.8: Cell respiration

Recap: structure of ATP P P P riboseguanineinorganic phosphate deoxyribosethymine organic phosphate nicotinamidecytosineadenineflavine

ATP is a source of energy Energy is released when ATP spits and forms ADP. The energy from this split is immediately available. A lot of the energy produced by cells ends up as heat (environment) therefore the body needs a continual source of energy. ATPADP Cell respiration Cell processes (active)

Recap: where in the cell? 1.Glycolysis 1.Phosphorylation 2.Oxidation 2.Link reaction 3.Krebs cycle 4.Oxidative phosphorylation

Types of Respiration AnaerobicAerobic No oxygen Small yield of ATP Emergency supply of energy Oxygen Large yield of ATP ‘normal’ energy supply

Anaerobic respiration glucose pyruvate carbon dioxide + ethanal ethanol lactic acid Yeast & plants Animals

Aerobic respiration glucose pyruvate Krebs cycle Link reaction Waste products are Carbon dioxide + water Waste products are Carbon dioxide + water

Investigation: Investigate how the type of sugar affects the rate of respiration. Background information & procedure on moodle.