Study Guide 4 - Study Guide 4 Proteins/Metabolism(Kopachik...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Study Guide 4 Proteins/Metabolism (Kopachik) Terms to know: First law Second law Energy (E) Entropy (S) ∆G (delta G) Spontaneous reaction Enthalpy (H) Exergonic reaction Endergonic reaction Equilibrium constant (Keq) Reaction coupling Summary of main points : 1. All the reactions in cells follow the laws of thermodynamics. The first law pertains to energy in the universe which is a constant but can be transformed or transferred. The second law refers to all changes increasing entropy. Highly ordered organisms need lots of energy to overcome entropy. Free energy is the amount that can do work; the more negative the number the more work can be done. A negative delta G means the reaction is spontaneous but doesn’t say anything about how fast the reaction is or the path taken to get from reactants to products. Since ΔG = ΔH – T ΔS the net change is important. To proceed spontaneously it must decrease enthalpy (energy in chemical bonds) or increase S or both. If H is negative the products are more stable; if S is positive then the products are more disordered. 2.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the 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.

Page1 / 2

Study Guide 4 - Study Guide 4 Proteins/Metabolism(Kopachik...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online