. It is
a cost effective way to replace some of the old tedious and boring tests with some that are interesting, useful and often dramatic.
in the 2-liter sample chamber are highly visible, making thisrespirometer ideal for student projects or demonstrations in real time.
lets the student SEE metabolism as it occurs, not justobserve the final results.
can change food, nutrients and temperature, add alcohol or easily attainable
pharmaceuticals and watch the results as they occur.
can obtain immediate results of metabolic activity, measuremetabolic effects of environmental changes
can be a quantitative course
to size and weightof organism
Effect of temperature
on rate ofrespiration
related to age oforganism
as measured by respiration rate
Effect of toxins and
stress on the organism
As a calorimeter - the
amount of oxygen needed to oxidize a givenweight of a substance
YOUR STUDENTS CAN EXPLORE:
Green House Gases
Biotreatment of Wastes
Biodegradability of Manufactured Products
ACCESSORIES FOR THE CLASSROOM
333-026 Set of perforated stages fit inside sample chamber for testing solid samples. Air flows freely through the sample throughout the test period.
333-030 2-liter live organism chamber
333-027 Acrylic Water Bath for temperature control
A letter to all educators
It's very likely that you have never heard of our company, Respirometry Plus, but we've been in the respirometer business for over 40 years.
During these years, we developed and manufactured the Arthur Respirometer for the biological wastewater treatment field. Frequently I was contacted by teachers and biology professors who wanted very badly to have one of our respirometers to use in their biology classes. You see, many of the respirometric tests performed by wastewater technicians could become the basis for biology class demonstrations, or as student laboratory experiments.
The best feature of our respirometer is its versatility, because it can be used to measure rate of oxygen use in aerobic respiration, and rate of gas production in anaerobic processes. As a biology teacher/professor, I am sure that you can appreciate the value of teaching these biological processes with today's intense interest in energy creation by natural methods, in the advantages of composting waste products, in biodegradation of soils, and so forth.
There was one very big obstacle for the educators who wanted one of our respirometers - a lack of money to purchase. The price of the fully automated respirometer that we were manufacturing for the wastewater field ranged from $15,000 to $20,000 per sale, and few educators could afford this. Our goal, therefore, was to develop an instrument that was priced at a fraction of the automated version. Of course we had to eliminate many of the bells and whistles that the wastewater field required, and this we have been able to do.
With the Simplified Respirometer, the readout is manual, not electronic, so students will need to read the results and record the test results on a computer. They can use Microsoft Excel to graph the results, or draw the graph by hand. The student will be very involved, observing the easily-viewed tests taking place in a two- liter acrylic chamber, recording the results and using his/her computer skills to chart the progress. There is also no waterbath to provide temperature control, but that can be provided as an extra. Also, the instrument will fit in an incubator.
The Simplified Respirometer costs a fraction of what we had to charge for the fully automated model, yet it is an equally effective instrument. Please explore this website to learn more about what this teaching tool can do for your students. If you want more complete information and a price quotation, go to our "Contact Us" page and make your request. I will provide the requested information promptly,
Robert M. Arthur, Ph.D., P.E. Technical Director
Toll Free in USA & Canada 1-800-328-7518 Tel: 920-922-6970 Fax: 920-922-1085