This preview shows page 1. Sign up to view the full content.
Unformatted text preview: _hydrophilic (or polar) but not for _ hydrophobic (nonpolar) molecules. The high number of _ H bonds within a macromolecule and between it and the hydration shell makes them very important for maintaining the shape of the molecule. The shape of a macromolecule is most important for its _ function . Placing in pure water a molecule with an acidic COOH functional group would _decrease the pH of the solution. Biological _ buffers of which carbonic acid is one example are used to maintain the organisms pH. To make 100 ml of an aqueous solution containing 0.5 M glucose which is C 6 H 12 O 6 (with atomic mass of C=12, H=1, O=16) and having a molecular weight of _ 180 _you would dissolve ___ 9 ___ grams of glucose in a total volume of 100 ml. A solution of pH 7.4 is _ 2.5 _ times more basic than a solution of pH 7.0. The H + ion concentration at pH 7.0 is _ 10-7 whereas at pH 7.4 it is _ 4 X 10-8 M ....
View Full Document
This note was uploaded on 05/25/2011 for the course BS 111 taught by Professor Patterson during the Winter '05 term at Michigan State University.
- Winter '05