AP Bio Lab Review
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AP Bio Lab Review
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Review 12 AP Bio labs in preparation for AP Bio Exam
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Question:
Describe the apparatus used to measure the rate of cell respiration.
Answer:
vial large enough to hold 20 germinating peas + cotton soaked with KOH (to absorb CO2) + pipette in a stopperThe apparatus is placed under water. As O2 is used, there is less gas and less pressure in the vial, therefore water moves into the pipette, By measuring the rate at which water enters the pipette, we measure the rate of cell respiration