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Cell Respiration
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Exercise 1: Features and Functions of a Respirometer
Features and Functions of a Respirometer

This illustration shows you the basic features of a respirometer. It will measure changes in gas volume related to the consumption of oxygen.

You can construct a respirometer by putting any small organism in a vial with a pipette attached. This example uses a cricket; in the laboratory experiment, you will use peas. Remember, cellular respiration occurs in the cells of both animals and plants!

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