284x 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!
no reviews yet
Please Login to review.