BIO 1140 Lecture Notes - Lecture 4: Chemical Polarity, Covalent Bond, Electronegativity

• School: University of Ottawa
• Department: Biology
• Course: BIO 1140
• Professor: Caroline Petit- Turcotte

Document Summary

This molecule belongs to the macromolecule of carbohydrates. O = 3. 44 n = 3. 04 c = 2. 55 h = 2. 20. Nonpolar covalent bonds: there is(cid:374)"t (cid:373)u(cid:272)h of a differe(cid:374)(cid:272)e i(cid:374) polarity (cid:271)et(cid:449)ee(cid:374) hydroge(cid:374) a(cid:374)d (cid:272)ar(cid:271)o(cid:374) An amino acid is composed of the following: The radical group is what make amino acids different. All amino acids have the same backbone. The radical group is what you need to look at to determine the differences in polarity. Understanding the polarity of amino acids is going to predict how it folds. Only the radical group (cid:373)atters, as it"s the deter(cid:373)i(cid:374)i(cid:374)g factor in the difference of polarity when comparing it with other amino acids. Units are daltons da (1 da = 1 h) 1 amino acid is around 110 da. In a cell, ph is typically 7. 2; most aa will be in their ionized form.