Respirometer

Jump to navigation Jump to search

WikiDoc Resources for Respirometer

Articles

Most recent articles on Respirometer

Most cited articles on Respirometer

Review articles on Respirometer

Articles on Respirometer in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Respirometer

Images of Respirometer

Photos of Respirometer

Podcasts & MP3s on Respirometer

Videos on Respirometer

Evidence Based Medicine

Cochrane Collaboration on Respirometer

Bandolier on Respirometer

TRIP on Respirometer

Clinical Trials

Ongoing Trials on Respirometer at Clinical Trials.gov

Trial results on Respirometer

Clinical Trials on Respirometer at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Respirometer

NICE Guidance on Respirometer

NHS PRODIGY Guidance

FDA on Respirometer

CDC on Respirometer

Books

Books on Respirometer

News

Respirometer in the news

Be alerted to news on Respirometer

News trends on Respirometer

Commentary

Blogs on Respirometer

Definitions

Definitions of Respirometer

Patient Resources / Community

Patient resources on Respirometer

Discussion groups on Respirometer

Patient Handouts on Respirometer

Directions to Hospitals Treating Respirometer

Risk calculators and risk factors for Respirometer

Healthcare Provider Resources

Symptoms of Respirometer

Causes & Risk Factors for Respirometer

Diagnostic studies for Respirometer

Treatment of Respirometer

Continuing Medical Education (CME)

CME Programs on Respirometer

International

Respirometer en Espanol

Respirometer en Francais

Business

Respirometer in the Marketplace

Patents on Respirometer

Experimental / Informatics

List of terms related to Respirometer

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]



A respirometer is a device used to measure the rate of respiration of a living organism by measuring its rate of exchange of oxygen and carbon dioxide. They allow investigation into how factors such as age or the effect of light affect the rate of respiration.

A simple respirometer designed to measure oxygen uptake or CO2 release consists of a sealed container with the living specimen together with a substance to absorb the carbon dioxide given off during respiration, such as soda lime pellets or cotton wads soaked with potassium hydroxide. The oxygen uptake is detected by displacement of manometric fluid in a thin glass U-tube connected to the container. When the organism takes in oxygen it gives off an equal volume of carbon dioxide. As this is absorbed by the soda lime, air is sucked in from the U-tube to keep the pressure constant, displacing the liquid. The rate of change gives a direct and reasonably accurate reading for the organism's rate of respiration.

As changes in temperature or pressure can also affect the displacement of the manometric fluid, a second respirometer identical to the first except with a dead specimen (or something with the same mass as the specimen in place of the organism) is sometimes set up. Subtracting the displacement of the second respirometer from the first allows for control of these factors.

See also

External links


Template:WikiDoc Sources

id:Respirometer