Lab 6: Bacterial chemotaxis II

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Lab 6 Bacterial chemotaxis II Colony
Counting Lab 7 Photosynthesis Experiment
Design Perform your own experiment
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Example
C
A
1
2
1
2
X C
25 16

1.56

Note All data will be a ratio of the
experimental attractant to the control.
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Bacterial chemotaxis data collection

• Determine whether unknown solutions showed
  positive chemotaxis by
• Counting colonies on plates and comparing ratios
• Ratio of a solution is X
• C
• If the ratio is lt 1, repellant
• gt1, attractant
• 1, neutral

Unknown solution
Control
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Photosynthesis

• The process by which plants use light energy
  convert carbon dioxide and water to glucose and
  oxygen.

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Parts of Photosynthesis

• Light dependent process
• a. Photophosphorylation
• 2. Light independent process
• a. Calvin Cycle

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Cross section of a leaf
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Stomata used for gas exchange and transpiration
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Photosynthesis is affected by several
factorsList these and how to manipulate them
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Light Use by an aquatic plant