Respiration
Teacher recommended
?- Created by: Kirsten Reading
- Created on: 27-04-13 10:44
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- RESPIRATION
- Aerobic
- glucose + oxygen = carbon dioxide + water + energy
- Glucose = result of digestion
- Carbon dioxide released as waste product
- Respiration using oxygen
- Plants and animals all the time
- Reactions happen in mitochondria
- Reactions controlled by enzymes
- glucose + oxygen = carbon dioxide + water + energy
- Anaerobic
- Exercise without oxygen
- glucose = energy + lactic acid
- Incomplete break down of glucose
- Muscle fatigue
- Muscles get tired & stop contracting efficiently
- Lactic acid builds up in the muscles
- Oxygen debt
- "Repay" oxygen that didn't get to muscles in time because lungs etc. couldn't keep up with the demand
- Blood flows through muscles to remove lactic acid (oxidising it)
- = high breathing rate after exercise
- Process of releasing energy from glucose which goes on in every cell
- Exercise
- Heart rate increases
- Supply blood to working muscles faster
- CO2 needs to be removed quicker
- Rate/depth of breathing increases
- Meet the extra demand for oxygen
- Glycogen
- Some glucose from food stored as glycogen
- Some of the stored glycogen converted back to glucose for more energy
- Heart rate increases
- Aerobic
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