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Biology - Respiration (T7) - Coggle Diagram
Biology - Respiration (T7)
Aerobic Respiration
Occurs in the mitochondria
Requires oxygen
Produces MORE ATP than anaerobic respiration
Glucose + oxygen —> Carbon dioxide + water (+ ATP)
C6H12O6 + 6O2 —> 6CO2 + 6H2O
Chemical energy is transferred from glucose to ATP molecules
Hydrogen carbonate respiration experiment
Turns from Orange/red to yellow in the presence of CO2
Used to test if the object is arobically respiring as one of the products of respiration is carbon dioxide.
Anaerobic respiration
Does not require oxygen
Occurs in the cytoplasm
Animals
Takes place when there is not enough oxygen available
Glucose —> Lactic acid
If lactic acid builds up in cells, it will lower the pH and the enzymes would eventually denature. Oxygen is required to break down the lactic acid which is why post exercise, breathing rate remains elevated (to repay the oxygen debt)
Lactic acid —> Carbon dioxide + water
Generates LESS ATP than aerobic respiration
Plants & Fungi
Glucose —> Ethanol + carbon dioxide
Humans use this in many applications such as:
Making bread
Brewing alcohol
Making biofuels
Respiration supplies energy for:
Cell division
Germination (growth)
Making proteins
Chemical changes in cells
Muscle contraction
Maintainence of a constant body temperature (as the reaction also realeases heat)
The process (example)
Air and food taken in
The lungs absorb oxygen from the air and the stomach and intestine digest food (One of the products are glucose)
The blood stream carries the glucose and oxygen to the muscles
Glucose and oxygen react to produce energy for muscle contraction
Carbon dioxide is carried to the lungs by the blood