Structure oflivingmatter fin
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This document provides an overview of the structure of living matter by summarizing key components like water, colloids, proteins, and nucleic acids. It discusses the properties of water molecules and how they form hydrogen bonds. It describes colloids as particles between 10-1000nm dispersed in a solvent via weak chemical bonds. It outlines the primary, secondary, tertiary, and quaternary structure of proteins, and summarizes the structure of nucleic acids like DNA and RNA.
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Ionophores are molecules that transport ions across biological membranes. They contain both hydrophilic regions that bind ions and hydrophobic regions that interact with membrane lipids. Ionophores are classified based on their mechanism of action as either mobile carrier ionophores which transport ion complexes, or channel-forming ionophores which introduce pores for ion passage. Examples include valinomycin which transports potassium ions, gramicidin A which forms channels for cation transport, and ionomycin which carries calcium ions into cells. Ionophores have important applications as antibiotics, in research to manipulate cellular physiology, and as feed additives to improve livestock growth and productivity.
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Structure oflivingmatter fin
- 1. Lectures on Medical Bi o physics Department of Biophysics, Medical Faculty, Masaryk University in Brno
- 2. Structure of living matter Lectures on Medical Bi o physics Department of Biophysics, Medical Faculty, Masaryk University in Brno
- 4. Water Molecules of water are strongly polar. Between the oxygen and hydrogen atoms of neighbouring molecules, hydrogen bonds are formed. They join water molecules in aggregates – clusters.
- 5. Hydrogen bonds between water molecules Liquid water Pictures : http://cwx.prenhall.com/bookbind/pubbooks/hillchem3/medialib/media_portfolio/11.html Ice
- 9. Tyndall effect in micellar and molecular colloids - In solution of gelatin (a protein) http://link.springer-ny.com/link/service/journals/00897/papers/0006002/620095mb.htm - In solution of colloidal gold http://mrsec.wisc.edu/edetc/cineplex/gold/
- 16. -structure (pleated sheet – antiparallel model) http://www-structure.llnl.gov/Xray/tutorial/protein_structure.htm
- 17. Tr iple helix of collagen h ttp://cwx.prenhall.com/horton/medialib/media_portfolio/text_images/FG04_34.JPG
- 22. A-DNA – dehydrated, B-DNA – commonly present under physiological conditions, Z-DNA – in sequences rich on CG pairs
- 24. Structure of chromatin http://cwx.prenhall.com/horton/medialib/media_portfolio/text_images/FG19_23_00742.JPG, http://cwx.prenhall.com/horton/medialib/media_portfolio/text_images/FG19_25_00744.JPG
- 26. Ribosom al RNA http://www.imb-jena.de/cgi-bin/htmlit.pl?color=ffffff&id=GIF&src=1c2w.gif&name=Image%20Library%20Thumb%20Nail%201C2W
- 29. Author: Vojtěch Mornstein Content collaboration and language revision: Carmel J. Caruana, Viktor Brabec Presentation design: Lucie Mornsteinová Last revision: June 2009