BIOL2000 Lecture Notes - Lecture 5: Gibbs Free Energy, Chemical Reaction, Cellular Respiration
16 Jan 2017
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Document Summary
Carbohydrates: hydrates or carbons with emp formular c1h201 n. Energy source, structure (celllulose, proteoglycab, protein modification), component of nucleic acids. Simplest: saccharides and can be linear but usually cyclic with five or six carbons. Sugars with aldehyde: aldose sugars, ketone: ketose sugars. Molecular polarity: charged: oygen so highly polar. Not ions, glucose can be linear or circular. Chemical reaction: process that leads to transformation of one set of chemical susbtance. Glycocalix: role in cell recognition, carbs interact w water to another. Propane fire, oxygen and iron rust, sucrose combustion. Occur because of collisions, have reactants and products. Equilibrium: no net change, forward and reverse reactions same rate and quanities remain constant. Number of collisions: more if highter temp and concentration. Energy: capacity to do work or supply heat: store potential or active motion. Stored: potential: chimcal energy in electrons and positions within molecules. Heat is thermal is mechanical energy: amount of random movement due to heat.
