1. + Aerobic Respiration Noadswood Science, 2012

2. + Aerobic Respiration To know the equation for aerobic respiration and how the energy produced is used Saturday, August 15, 2015

3. + Respiration What do you know about respiration? What is needed to live? Do all organisms require the same thing? In pairs, discuss any facts you know in the next two minutes

4. + Respiration “Respiration is breathing in and out” “Plants photosynthesise but animals respire” “During respiration, oxygen is produced” “During respiration, energy is produced” Although these comments may sound correct, every single one is wrong!!!

5. + Respiration Respiration is not the same thing as breathing (ventilation) Respiration is a chemical process in which energy is released from food substances, such as glucose (sugar) Aerobic respiration needs oxygen to work – most of the chemical reactions involved in the process happen in specialised cell organelles – the mitochondria

6. + Respiration Respiration takes place in the cells (it is not “breathing in and out”) Respiration is the release of energy (from glucose) in our cells Animals and plants respire

7. + Respiration Equation Aerobic Respiration: - glucose + oxygen  carbon dioxide + water + (energy) C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + (energy)

8. + Aerobic Equation

9. + Respiration Use Respiration is used by both animals and plants… The energy released is used to: - Build up smaller molecules into larger ones, as well as: - Enabling muscles to contract To build up tissue Maintaining a constant body temperature In plants to build up sugars, nitrates and other nutrients To build up amino acids (and eventually proteins)

10. + Testing How could you test for respiration? What could you measure to prove it was taking place and at what rate? During respiration the gas carbon dioxide is produced - testing for this would show if respiration occurred, and at what rate The test for carbon dioxide is to use limewater (it goes cloudy) Water is also produced - we could measure this (how much we exhale) Energy is also released during respiration = which is used by our cells (however it is difficult to test this, but you could monitor the activity of the organism (the heat released))

11. + Key Words Have a go at the following wordsearch: - Words to find: - Aerobic Anaerobic Carbohydrase Carbohydrate Carbon dioxide Energy Glucose Lactic acid Oxygen Respiration Water

12. + Test

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