organisms on land need to maintain a constant body

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: energy to living systems. •  Higher temperatures mean that organisms can swim, run, fly, digest their food faster. •  The rates of most biological processes increase between 2 and 4 /mes for each 10°C rise in temperature. •  The ra/o of the rate of physiological process at one temperature to its rate at 10°C cooler = Q10 •  This does not go on indefinitely. Cold temperatures and freezing •  Just as too much heat can have a nega/ve effect on biological func/ons, so will too lifle heat. •  Cells can not handle freezing. •  Organisms in cold environments cope with freezing by either maintaining their body temperature above 0°C. •  Or by ac/va/ng chemical mechanisms that enable them to tolerate the effects of freezing. •  Antarc/c fish cope with cripplingly cold water by increasing the concentra/ons of compounds like glycerol in their blood. •  Antarc/c cod have high concentra/ons of glycerol and other glycoproteins in their...
View Full Document

This document was uploaded on 02/15/2014 for the course BIO 286 at Purdue University-West Lafayette.

Ask a homework question - tutors are online