Download True or False

Photosynthesis
Photosynthesis
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• Biology 1406 first day quiz
True or False When white light passes through a colored filter, the filter
adds color to the light.
True or False The primary source of oxygen for our atmosphere is trees.
True or False It is harmful to baby birds to pick them up and return them
to their nests.
True or False Swallowed chewing gum takes seven years to digest.
True or False DNA is not made of protein.
True or False Hair and fingernails continue to grow after a person dies.
True or False Fever harms the brain and the body.
True or False Daddy longlegs spiders (Pholcus phalangioides) are the
most venomous spiders in the world.
True or False Sugar causes hyperactivity in children.
True or False Humans catch warts from toads or other animals.
Photosynthesis
• PHOTOSYNTHESIS PART I: THE SUN AND LIGHT
• Sun-Ultimate
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Not all of the light from the Sun makes it to the surface
of the Earth.
• The little light that does make it here is enough for the
plants of the world to survive and go through the process
of photosynthesis.
Photosynthesis
• Even when light gets to a plant, the plant
doesn't use all of it. It actually uses only
certain colors to make photosynthesis
happen.
Photosynthesis
• Plants mostly absorb
red and blue
wavelengths of light.
Photosynthesis
• When you see a
color, it is actually a
color that the object
does NOT absorb.
• In the case of green
plants, they do not
absorb light from the
green range.
Photosynthesis
• PART II: THE
CHLOROPLAST
• Photosynthesis
happens in the
chloroplast.
• Within this cell
organelle is the
chlorophyll that
captures the light
from the Sun.
• Chloroplasts harness
light and convert to
chemical energy.
Photosynthesis
• PART III: THE MOLECULES
• Chlorophyll is the magic compound that
can grab that sunlight and start the whole
process.
Photosynthesis
• Today
– Spectrophotometer measure wavelengths of
absorbed light
– Pigment chromatography
• Four primary pigments of
green plants
• Starch Storage