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ENERGY IN CELLS<br />Class notes<br />Monday, October 4th, 2010<br />
Where do we get our energy from?<br />Food that we eat!<br />How did that food get its energy?<br />Cells take energy stor...
Where does this energy in food come from?<br />All of the energy comes from the sun: Solar energy!<br />Plant cells<br />A...
Where does this process take place?<br />Plants make their own food through PHOTOSYNTHESIS<br />Plant cells have chloropla...
PHOTOSYNTHESIS<br />Turning solar energy into sugars <br />Requires:<br />Carbon dioxide<br />Water<br />Light energy<br />
RESPIRATION<br />We must break down the food moleculesinto energy our cells can use<br />This is called RESPIRATION<br />R...
Instructions: <br />You will be assigned to be a carbon (C ), hydrogen (H) or oxygen (O) atom and we will act out the proc...
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Energy in cells

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Energy in cells

  1. 1. ENERGY IN CELLS<br />Class notes<br />Monday, October 4th, 2010<br />
  2. 2. Where do we get our energy from?<br />Food that we eat!<br />How did that food get its energy?<br />Cells take energy stored in food and change it into different forms for all activities of life<br />
  3. 3. Where does this energy in food come from?<br />All of the energy comes from the sun: Solar energy!<br />Plant cells<br />Absorbs the sun’s energy and changes it into a form of energy that the plant can use<br />We eat plants and other animals that eat plants<br />This is how we get our energy!<br />
  4. 4. Where does this process take place?<br />Plants make their own food through PHOTOSYNTHESIS<br />Plant cells have chloroplasts<br />Chloroplasts contain chlorophyll (a green chemical) which traps the sun’s energy<br />
  5. 5. PHOTOSYNTHESIS<br />Turning solar energy into sugars <br />Requires:<br />Carbon dioxide<br />Water<br />Light energy<br />
  6. 6. RESPIRATION<br />We must break down the food moleculesinto energy our cells can use<br />This is called RESPIRATION<br />Requires:<br />Oxygen <br />Sugars to break down (food!)<br />
  7. 7. Instructions: <br />You will be assigned to be a carbon (C ), hydrogen (H) or oxygen (O) atom and we will act out the processes of photosynthesis and respiration<br />Some students may also be theSUNand equals (arrow symbol: )<br />PHOTOSYNTHESIS equation:<br />RESPIRATION equation:<br />

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