Biology notes 10-13-08

Biology notes 10-13-08 - Biology notes: 10-13-08 Catalysis...

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

View Full Document Right Arrow Icon
Biology notes: 10-13-08 Catalysis of Biochemical reactions Proteins control the metabolism of a cell by catalyzing specific chemical reactions I. Energetics of a typical chemical reaction a. Model reaction: A and B can be transformed into C and D by rearranging electrons, thus covalent bonds, upon collision b. A and B together have some potential energy (in chemical bonds)n and kinetic energy (in motion c. A and B collide; colison distorts or stresses bonds to the pont where they can rearrange electrons; generally, this requires more potential enegy (since without stress, one expects electrons to find low energy, stable state): extra; energy is activation energy d. Complex decays to give different or same product e. What is wrong with this figure? i. Where did the energy go? ii. Does not show entropy iii. Free energy always goes down iv. Entropy can ve converted to enerfy v. Cannot make the entropy of a closed system go down II. Rates of uncatalyzed reactions: a. Rate depends on probabilities of
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.

Page1 / 2

Biology notes 10-13-08 - Biology notes: 10-13-08 Catalysis...

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