154x Filetype PPTX File size 0.69 MB Source: www.lrhsd.org
PHOTOSYNTHESIS What do you need for Photosynthesis? What do you need for PHOTOSYNTHESIS? The sun Carbon dioxide from the air Pigment Water from the soil Carbon Dioxide • How does gases enter and leave a plant? Stoma or Stomate or Stomata Sun = Source of Light • Consists of Waves • Length of Wave determines light color. • Light absorbing substances are called pigments. Types of Pigments • Chlorophyll a & b (look green) – Absorb violet/blue light & orange/red light but not green light! – The color we observe is the color that is not absorbed by the pigment but reflected and that is why we see it!
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