Featured Research

from universities, journals, and other organizations

Biologists Take New Look At Metabolism

Date:
May 9, 2002
Source:
University Of California - Santa Barbara
Summary:
Research in metabolism published in this week’s issue of Nature explains that the relation between rates of metabolism and body mass in animals may be more complicated than current models can describe. The authors offer a new model, and a new understanding of the problem, as Ewald Weibel says in the News and Views section of the journal.

(Santa Barbara, Calif.) –– Research in metabolism published in this week’s issue of Nature explains that the relation between rates of metabolism and body mass in animals may be more complicated than current models can describe. The authors offer a new model, and a new understanding of the problem, as Ewald Weibel says in the News and Views section of the journal.

Raul K. Suarez, co-author and associate professor of biology at the University of California, Santa Barbara, calls the publication a "concept paper" suggesting that multiple factors must be considered when defining metabolism in relation to size. Such factors include the sizes of different organs, the physiological state (rest or exercise), energy supply and demand pathways.

Wiebel poses the question, "Why should a mouse burn six times more energy per minute than a human? The first intuitive answer is, to keep warm." He explained that this idea appeared to be supported when it was found in 1883 that the body’s surface-to-volume ratio or the 2/3 power of body mass. Another slightly different number was developed in 1932, which since that time, many investigators have contested or rationalized, according to Wiebel.

"There may not even be a single power law relation between metabolic rate and body size," said Wiebel of the new research. (The authors) "find it to be different for basal and maximal metabolic rate, and explain why."

Suarez studies hummingbirds, which are at the upper limit of metabolism for vertebrates. He also studies flying insects. Collaboration with scientists at the University of British Columbia – Charles-A. Darveau, Russel D. Andrews, and Peter W. Hochachka – who co-authored the paper, led to the insights embodied in their article in Nature.


Story Source:

The above story is based on materials provided by University Of California - Santa Barbara. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - Santa Barbara. "Biologists Take New Look At Metabolism." ScienceDaily. ScienceDaily, 9 May 2002. <www.sciencedaily.com/releases/2002/05/020509073700.htm>.
University Of California - Santa Barbara. (2002, May 9). Biologists Take New Look At Metabolism. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2002/05/020509073700.htm
University Of California - Santa Barbara. "Biologists Take New Look At Metabolism." ScienceDaily. www.sciencedaily.com/releases/2002/05/020509073700.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pregnancy Spacing Could Have Big Impact On Autism Risks

Pregnancy Spacing Could Have Big Impact On Autism Risks

Newsy (Oct. 1, 2014) A new study says children born less than one year and more than five years after a sibling can have an increased risk for autism. Video provided by Newsy
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com
Insertable Cardiac Monitor

Insertable Cardiac Monitor

Ivanhoe (Oct. 1, 2014) A heart monitor the size of a paperclip that can save your life. The “Reveal Linq” allows a doctor to monitor patients with A-Fib on a continuous basis for up to 3 years! Video provided by Ivanhoe
Powered by NewsLook.com
Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins