Bio 181 lab final - Study guides, Class notes & Summaries

Bio 181 Lab FinalWhat is a catalyst? - correct answer A substance that increases the rate of a chemical reaction without being used up What is an enzyme? - correct answer A biological molecule that increases the rate of a chemical reaction without being consumed, usually a protein. What is the activation energy? - correct answer The energy required to convert a substrate to a product How do enzymes catalyze reactions? - correct answer By forming a substrate-enzyme complex. The enzyme br...

Bio 181 Lab Final Exam – Questions With Solutions

BIO 181 FINAL STUDY GUIDE Lecture #1: 1. How did the four macromolecules appear on early earth? Components of “Primitive Soup”  Carbohydrates, Lipids, Nucleic Acids, Proteins (four macromolecules of life) We don’t have a clear answer but there are numerous hypotheses. 2. List and explain the basis/ background for the four main theories of how life originated on early earth. Are there any challenges these theories have to overcome? a) Oparin-Haldane Hypothesis (tested by Miller-Urey) a. ...