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All living things need energy to carry out their life processes.

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Presentation on theme: "All living things need energy to carry out their life processes."— Presentation transcript:

1 All living things need energy to carry out their life processes

2 All Living Things Need ENERGY Photosynthesis Cellular Respiration Only in Plants Need Sunlight Plants at Night Animals 24/7

3 ENERGY  The ability to do work or cause change

4 How do living things get energy?  By burning fuel  Cars burn gasoline (non-living)

5 How do living organisms get energy?  Living organisms “burn” glucose (simple sugar)  This is called CELLULAR RESPIRATION

6 Where does glucose come from?  Animals ingest food  Carbohydrates

7 Where does glucose come from?  Plants are different  Plants make their own food in a process called PHOTOSYNTHESIS

8 PHOTOSYNTHESIS  Food making process in plants and other organisms that use sunlight

9 PHOTOSYNTHESIS  Only in plants  Only occurs when light is shining on the plant  At night, plants use cellular respiration for energy

10 Glucose

11 Photosynthesis Video  tdc02/sci/life/stru/photosynth/index.html tdc02/sci/life/stru/photosynth/index.html tdc02/sci/life/stru/photosynth/index.html

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13 Photosynthesis Movie

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15 Photosynthesis Equation Glucose

16 Illuminating Photosynthesis  tdc02/sci/life/stru/methusweb/index.html tdc02/sci/life/stru/methusweb/index.html tdc02/sci/life/stru/methusweb/index.html

17 Chloroplasts and Photosynthesis

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19 1. 1. Photosynthesis takes place in the (leaves / root) of a plant (Sunlight / Water) supplies the energy a plant needs to make sugar. 3. Carbon dioxide enters the plant through the (xylem / stomata). 4. The cell parts of green plants where photosynthesis takes place are (mesophyll / chloroplasts). 5. A plant gives off (oxygen / carbon dioxide) as a byproduct during photosynthesis Water is taken into a plant through the (roots / veins). 7. An organism that gets food by eating other organisms is (an autotroph / a heterotroph).

20 Cellular Respiration  A chemical reaction that takes place in the mitochondria  This reaction releases energy for the cell to use

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23 Mitochondria Movie

24 Oxygen Glucose Carbon dioxide Water Energy

25 Cellular Respiration Equation C 6 H 12 O 6

26 C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + ENERGY Glucose + Oxygen  Carbon dioxide + Water + ENERGY C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + ENERGY Glucose + Oxygen  Carbon dioxide + Water + ENERGY 1. What are the byproducts of cellular respiration? Answer: Carbon dioxide, water and ENERGY! 2. What sugar is used for cellular respiration? Answer: glucose Answer: glucose

27 C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + ENERGY Glucose + Oxygen  Carbon dioxide + Water + ENERGY C 6 H 12 O 6 + 6O 2  6CO 2 + 6H 2 O + ENERGY Glucose + Oxygen  Carbon dioxide + Water + ENERGY 3. Why does the body carry out cellular respiration? Answer: to produce energy 4. What substances does the body need to carry out cellular respiration? Answer: oxygen and glucose

28 Photosynthesis and Respiration reactions Oxygen and Glucose Carbon dioxide and Water Photosynthesis

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