Effects of low temperatures on biological membranes
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Effects of low temperatures on biological membranes

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Published by Academic Press in London, New York .
Written in English

Subjects:

  • Cryobiology -- Congresses.,
  • Cold adaptation -- Congresses.,
  • Cold -- Physiological effect -- Congresses.,
  • Membranes (Biology) -- Congresses.

Book details:

Edition Notes

Statementedited by G.J. Morris, A. Clarke.
ContributionsMorris, G. J., Clarke, A., 1949-
Classifications
LC ClassificationsQH324.9.C7 E33
The Physical Object
Paginationxxii, 432 p. :
Number of Pages432
ID Numbers
Open LibraryOL3789781M
ISBN 100125076509
LC Control Number81067921

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Some of the contributions in this book were originally presented at a symposium on effects of Low Temperatures on Biological Membranes by the Society for Low Temperature Biology held on 25 Sept. in London. There are 17 contributions under the main headings basic principles, adaptation to low temp., injury at low temp. and freezing injury. Effects of low temperatures on biological membranes. London ; New York: Academic Press, (OCoLC) Material Type: Conference publication: Document Type: Book: All Authors / Contributors: G J Morris; A Clarke. Effects of low temperatures on biological membranes Previous Article Topics in photosynthesis: Vol. 4 electron transport and photophosphorylation Next Article Structural crystallography in chemistry and biology (Benchmark papers in physical chemistry and chemical physics, Vol. 4)Cited by: 2. In contrast, low temperature has consequences on the lipid components of plasma membrane and viscosity of the cytoplasm (Sidell and Hazel, ; Quinn, ) and Author: Peter J Quinn.

The ability of bacteria to grow at low temperatures, maintains the fluidity of the membrane, which upon cold shock becomes rigid and impairs membrane associated functions such as transport, energy. A decrease in temperature can also have a negative effect on cell membranes and cells. At low temperature, the fatty acid tails of the phospholipids move less and become more rigid. This decreases the overall fluidity of the membrane, also decreasing its permeability and potentially restricting entry of important molecules such as oxygen and glucose into the cell. An Introduction to Biological Membranes: From Bilayers to Rafts covers many aspects of membrane structure/function that bridges membrane biophysics and cell biology. Offering cohesive, foundational information, this publication is valuable for advanced undergraduate students, graduate students and membranologists who seek a broad overview of. -temperature:high temperature gives the molecules more kinetic energy so their rate of diffusion will increase -diffusion distance:the thicker the membrane the slower the rate -surface area:larger the surface area the more diffusion which can take place -size of molecule:smaller ions or molecules diffuse more rapidly than larger molecules -concentration gradient:steeper the gradient the faster.

MEMBRANE CONSTRAINTS TO GROWTH AND FUNCTION AT DIFFERENT TEMPERATURES Thermal Perturbation of Membrane Structure and Function One consequence of poikilothermy is perturbation of membrane organization when cell or body temperature changes. Effects of temperature are most evident as altered properties of the acyl chain domain in the bilayer interior. Journals & Books; Register Sign in. Volume , Issue 3, 6 February , Pages Temperature adaptation of biological membranes. The effects of acclimation temperature on the unsaturation of the main neutral and charged phospholipids in mitochondrial membranes of the carp. Explain why having a greater proportion of unsaturated fatty acids in the cell membranes maintains their fluidity at low temperatures. If temperature drops: more unsaturated fatty acids, the more likely to keep the fluidity of the membrane because they push away adjacent phospholipid molecules with kinks in their tails. Likewise, the composition from one membrane type to another is highly heterogeneous. There is some evidence to suggest that the composition, particularly of the lipid component, may change in response to environmental conditions such as temperature, water stress, etc. as well as during growth, development and ultimately senescence of the by: