Stomata Lab

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Stomata Lab
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Click video to play
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Begin your flow chart.
water droplets
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• Plants have special pores called stomata to allow
  passage of gases into and out of the plant leaf.
  This is the site where carbon dioxide is taken
  into the leaf and oxygen is released from the
  leaf. Water can also exit the leaf through these
  pores.

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• The stomata pores are surrounded on both sides by
  jellybean shaped cells called guard cells. These
  cells expand or contract to open or close the
  stomata. Guard cells also close when the plant is
  dehydrated or in dry weather to keep more water
  in the plant.

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The number of stomata on the underside of a leaf
can tell a lot about a plant. Usually, a high
concentration of stomata indicates fast growth
and a wet climate. Lower concentrations of
stomata indicate lower rates of photosynthesis
and growth and are adaptations for dry weather.
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What could you ask after seeing the video?
Where is the water coming from?
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With the information you have, what is your
hypothesis?This is done by yourself.
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Predict what you will find on the underside of
the leaf.
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Use the microscopes to explore the different
leaves.
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Complete this portion while you are looking at
the leaves
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Open and Closed Stomata
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Open and Closed Stomata
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Chlorophyll
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Describe what you saw.
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Based on what you saw, how would you answer your
original question?
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Circle one of these based on whether your
hypothesis was correct or incorrect.
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eye piece
body tube
nosepiece
arm
objectives
stage
stage clips
course adjustment
diaphragm
fine adjustment
light source
base
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Complete this question on your own.
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Complete these questions
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These questions are the MOST important