TAMU BIOL 213 - Final Exam Study Guide (42 pages)

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Final Exam Study Guide



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Final Exam Study Guide

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The review of material that we've covered since the last exam is more detailed than the rest of the review, which is based mostly on the 'be able to's.


Pages:
42
Type:
Study Guide
School:
Texas A&M University
Course:
Biol 213 - Molecular Cell Biol
Edition:
1

Unformatted text preview:

Biol 213 1st Edition Final Exam Study Guide This is a chronological review The review of the material that was covered most recently is near the end labeled the most recent material that we have not yet been tested on and is more detailed The rest of the review that s over the first 3 exams is not as detailed it s based mostly only on the be able to s EXAM 1 MATERIAL LECTURE 1 What are the three central tenets of the cell theory Explain them 1 All organisms are composed of one or more cells 2 The cell is the structural unit of life it s the smallest living thing 3 Cells can only arise by division from preexisting cells there s no such thing as spontaneous generation Describe Pasteur s experiment Draw it He had two flasks of living stuff He boiled both to kill everything One flask had a straight neck so that it was open to the environment the other had a curved neck so that it was closed to the environment and nothing could get in He incubated both flasks The one with the straight neck had stuff growing in it the one with the curved neck did not This proved that spontaneous generation did not exist because nothing spontaneously generated in the flask closed to the environment What would have happened in his experiment if cells didn t have to come from other cells Growth would have been observed in the flask with the curved neck What s the difference between pasteurization and sterilization Pasteurization is when you heat a solution so that you only kill some of the stuff in it Sterilization is when you heat a solution so that you kill everything in it LECTURE 2 Explain ionic bonds covalent bonds hydrogen bonds hydrophobic interactions and van der Waals attractions Ionic bonds occur when one atom gives its electrons to another atom Covalent bonds are when two atoms share electrons Hydrogen bonds are when a hydrogen atom that is bonded to an electronegative atom like oxygen or nitrogen is attracted to another electronegative atom like oxygen or nitrogen Hydrophobic



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