Respirometer
Product Code : JA-LS-5086
The Respirometer (SKU JA-LS-5086) is made by JaincoLab for comparing the rates at which small organisms absorb or give off gases during respiration. Two stoppered glass boiling tubes are joined by three-way taps to the two limbs of a graduated U-shaped manometer. One tube holds the organisms, the other acts as a control, and the movement of liquid in the manometer shows the gas exchange.
Specifications
The components below are as described in the listing.
| Product | Respirometer |
| SKU | JA-LS-5086 |
| Chambers | Two stoppered glass boiling tubes |
| Connection | Three-way taps to each limb of the manometer |
| Manometer | U-shaped, graduated |
| Experimental tube | Holds the organisms; syringe for adjusting the manometer liquid level during setting up |
| Control tube | Acts as a thermo-barometer |
| Supplied with | Wire basket for supporting organisms, 1 mL syringe |
How the respirometer works
The listing describes the working principle:
- The organisms rest on the wire basket in the experimental tube, which also contains potassium hydroxide.
- Carbon dioxide given off in respiration is absorbed by the potassium hydroxide, so the gas volume in that tube changes.
- The change moves the liquid in the graduated manometer, and the reading is compared with the control thermo-barometer tube, which responds to temperature and pressure changes alone.
Scope of supply and ordering
The respirometer is supplied complete with the wire basket and 1 mL syringe; potassium hydroxide is not part of the listing. Quantities and packing are confirmed on the quotation.
Frequently asked questions
What is the second tube for?
It acts as a control thermo-barometer alongside the tube that holds the organisms.
Which accessories are included?
A wire basket for supporting the organisms and a 1 mL syringe.
What absorbs the carbon dioxide?
Potassium hydroxide placed in the experimental chamber.
Related products
Biology apparatus is also listed in the JaincoLab lab supplies range.
Request a quote
Send the number of Respirometers (JA-LS-5086) you need through the contact page. Buying under a laboratory tender? Use our tenders page.
