Intro for respiration
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Where does respiration happen?
In all cells
What happens during respiration?
Chemical energy trapped in food molecules is released
What can this energy be used for?
Cell activities like: cell division Growth and repair Building large molecules like proteins Muscle contractions Transport of materials
How does energy get into food?
Photosynthesis- light energy is converted into chemical energy
Where do plants make their own food to use in respiration?
Their own cells
Where do animals get their food?
Plants or other animals
Hat will every food chain start with?
A producer that can photosynthesise
How do food molecules reach the cells of animals once they have eaten them?
Food eaten & digested Small molecules like sugars are absorbed into the blood of the small intestine
What is the small intestine lined with?
Villi to increase the absorption area
What are both aerobic and anaerobic respiration controlled by?
Enzymes
What is respiration, a chemical reaction controlled by enzymes, affected by?
Temperature