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4.2 Respiration - Coggle Diagram
4.2 Respiration
Function
Exothermic
Releases energy
Need for energy
Movement
Generating heat to warm up
Anabolic reactions
Joining of small molecules to form larger molecules
Synthesis using glucose
Cellulose
Starch
Glycogen
Synthesis of lipids
3 fatty acids
Glycerol
Synthesis of amino acids
Making proteins
Requires glucose and nitrates
Types
Aerobic
Produces more energy
Glucose + oxygen --> carbon dioxide + water
Anaerobic
Produces less energy
Yeast and plants
Fermentation
Glucose --> ethanol + carbon dioxide
Produces ethanol
Used in making bread and alcoholic drinks
Muscles
Glucose --> lactic acid
Build up of lactic acid
Muscle fatigue
Stops efficient contraction
Exercise
Higher demand for energy
Supply oxygenated blood at a higher rate to muscles
Higher
Heart rate
Breath volume
Breathing rate
May lead to insufficient oxygen
Oxygen debt
Additional volume of oxygen needed to react with lactic acid to remove it from the cells
Metabolism
The sum of all metabolic reactions in a cell or an organism
Catabolic reactions
Larger molecules broken down into smaller ones
Excess proteins are broken down to urea
In the liver
Lactic acid is converted to glucose