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Cell Energy

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Cell Energy All cells need energy to survive. Plant Cells energy comes from the sun and nutrients in the soil. Animal Cells energy comes from food. – PowerPoint PPT presentation

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Title: Cell Energy


1
Cell Energy
  • All cells need energy to survive. Plant Cells
    energy comes from the sun and nutrients in the
    soil. Animal Cells energy comes from food.

2
Photosynthesis
  • Plants have pigments that absorb light.
  • Chlorophyll is the main pigment that gives the
    plant its green color.
  • Chlorophyll is found in Chloroplasts.

3
  • Plants use the energy captured by chlorophyll to
    change to carbon dioxide and water into food.
  • The food is then changed into glucose. ( sugar)
    The glucose is stored in the plant.
  • Photosynthesis produces oxygen.

4
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5
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6
Getting energy from food.
  • There are a couple ways of getting energy from
    food.
  • Cellular Respiration- the process by which cells
    use oxygen to produce energy from food.

7
  • Most complex organisms ( plants and animals)
    obtain energy through cellular respiration.
  • During C. R. food is broken down into CO2 and
    H2O.
  • Animals use most energy to maintain body temp.
  • Some energy is used to form adenosine
    triphosphate. ( ATP)

8
  • Prokaryotic Cells-CR takes place in the cell
    membrane.
  • Eukaryotic Cells- CR takes place in the
    mitochondria.
  • Fermentation- the breakdown of food without the
    use of oxygen
  • Two Types

9
  • 1. Fermentation happens in your muscles and
    produce lactic acid.
  • This is why your muscle begin to have a burning
    sensation. ( Muscle Fatigue)
  • 2. Fermentation happens in some types of bacteria
    and yeast.

10
Connection between Photosynthesis and CR
  • During photosynthesis cells use CO2 to make
    glucose and the cell release O2.
  • During CR cells use O2 to break down glucose and
    release CO2

11
Ill be Back..
12
  • http//highered.mcgraw-hill.com/sites/dl/free/0078
    617022/164155/00053412.html (Photosynthesis
    /consumption)
  • http//i-biology.net/ Fossil Fuels
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