The apparatus consists of two stoppered boiling tubes connected by three way taps to either limb of a graduated manometer.
One tube holds the organisms and has a syringe for altering the level of liquid in the manometer during set up.
The other tube acts as a control thermo-barometer.
C02 given off by the respiring organism is absorbed by potassium hydroxide in the experimental chamber resulting in a change in the level of liquid in the manometer tube.
A compact unit for comparing rates of absorption or evolution of gases by small organisms during respiration.
Technical Specifications :
Complete with wire baskets for supporting organisms.
The apparatus consists of two stoppered boiling tube connected by three-way taps to either limb of graduated manometer.