The Need for Energy

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The Need for Energy

• Energy is essential to life.
• The molecule that stores energy is ATP or
  adenosine triphosphate.

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The Need for Energy

• ATP is the energy carrier for the cell. ATP
  allows energy to be immediately available for
  cell processes.

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Photosynthesis

• Photosynthesis is the process that uses the suns
  energy to make simple sugars.
• 6CO2 6H2O C6H12O6 6O2
• Photosynthesis takes place in the chloroplast of
  plant and algal cells.

Where are chloroplasts found?
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Photosynthesis

• Pigments like chlorophyll are required for
  photosynthesis to take place.
• Photosynthetic pigments are stored in the
  thylakoids of the chloroplast.

grana
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Water enters the plant through the roots and
travels up to the leaf through the veins.
Water then travels to each cell through a process
known as OSMOSIS.
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Carbon dioxide enters the leaf through the
stomata.
Carbon dioxide then travels to each cell through
a process known as Diffusion.
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Photosynthesis

• Photosynthesis happens in 2 phases
• Light-dependent reaction
• Chloroplast Stage
• Electron Transport Chain
• Light-independent reaction
• Calvin cycle
• Carbon Fixation
• Produces Glucose

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Light Dependent Reaction

• The Light Dependent Reaction converts light
  energy into chemical energy and produces ATP.
• The products of the Light Dependent Reaction are
  used to fuel the Light Independent Reaction.

chloroplast
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Light Independent Reaction

• The Light Independent Reaction takes place in the
  stroma of the chloroplast.

thylakoids
C6H12O6
chloroplast