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Welcome to Bio181L!

Welcome to Bio181L!. Section 33, Room 420 ASHA. What 181L is. Thinking, Understanding, Investigating, Evaluating Not arrive, assembly line, leave Manual pp. ix & xi should help Not sync ’ ed with most lecture sections, but internally coherent & mutually reinforcing. Expectations.

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Welcome to Bio181L!

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  1. Welcome to Bio181L! • Section 33, Room 420 • ASHA

  2. What 181L is • Thinking, Understanding, Investigating, Evaluating • Not arrive, assembly line, leave • Manual pp. ix & xi should help • Not sync’ed with most lecture sections, but internally coherent & mutually reinforcing

  3. Expectations • Read the lab manual BEFORE lab • Be ON TIME to class • PARTICIPATE, ASK QUESTIONS • Complete the assignments (online, etc) • Think, evaluate, investigate, understand • No phones, or zero on your quiz

  4. Attendance • Absences must be excused through Asya Roberts in BSE 109 • Arriving late/leaving early is absent • Make-up labs that same week, permission from Asya • Miss 2 labs and you should drop, or we’ll do it

  5. E-mail/Office hours • Friday 10-11 @Koffler 209 • Notify me via email if you plan to come or I will not be there • All emails received by Monday night each week will be answered by Tuesday afternoon

  6. 181 Lab ACCOUNTS • http://blc.arizona.edu/courses/181lab (Safari home page) • Click ‘Create Accounts’ • Your section number is: 33 • Bio181L_Go is the way to do your work. Browser bad

  7. What’s an Assessor? =>Chatting<=

  8. My Webpage • Get there via homepage* => Instructors => Sxn#33 *http://blc.arizona.edu/courses/181Lab (Lab Man yellow page)

  9. ALL HOMEWORK ASSIGNMENTS DUE @ 10PM the night before your lab (TUESDAY)

  10. Some advice http://www.damnlol.com/please-do-me-right-now-224.html

  11. Policies & Grading • Syllabus (Linked on course homepage) • Assignments • On-line assessments/tutorials (10%) • In-class quizzes (15%) • Lab assignments (LABAs--Lab Activity Based Assignments) (50) • Lab Projects & reports (combine to 25%) • Every assignment is posted & reported on basis of 100% • For electronic assignments, log in again to see your recorded score • Also reported to you at the end

  12. Plagiarism • http://deanofstudents.arizona.edu/codeofacademicintegrity/ • DO YOUR OWN WORK • Plagiarism agreement (Manual, p. xiii) • READ, sign, and turn in for 10 points on quiz next week!

  13. How? Why? the Tao of Molecules • How molecules feel & the world they live in

  14. Primary goals • Create understanding by observation, reasoning • Chemical foundations for the course: • Water & its properties • non-watery things • Know molecules as real & tangible things

  15. When a journalist asked the great physicist Richard Feynman what single sentence would best encapsulate all science so far if it were to be the sole surviving scrap of all we knew, he replied,“The world is made of atoms.” From The Secret of Scent, Luca Turin p.28

  16. Atoms: They’re how life works • Carbs: C, H, O • DNA, RNA: C, H, N, O, P, [Mg++] • Protein: C, H, N, O, (S), (P), [traces] • Membranes: C, H, N, O, P, (S) What cannot be done with assemblages of these atoms* cannot be doneby living organisms, nor their cells, nor their spit, etc. *OK, fine, there’s the occasional role for Ca++, etc.

  17. Who am I? • At birth, # protons = # electrons • Atoms seek completion, which means outermost electron set = 8 (hydrogen, helium it’s just 2) Freeman Fig. 2.1a

  18. Symbolizing • Atoms & Molecules

  19. Coloring your world You will be tested on this

  20. + O H H + - Views of Water (There will be a test) H2O See lab manual, p. 0-3

  21. How to draw molecules Carbon HydrogenOxygenNitrogen Figure is from Lab Manual p. 0-5

  22. Interacting with H2O To your StructViewers! Desktop => Bio181L_Go

  23. Doing it • Computers, stations • Write your group name down; otherwise you can’t retrieve your work! Open “Tao_MCB181L” on your desktop

  24. TA-lead discussions • Talk to me about what you’re doing!

  25. “Salting out” • It’s a real term; used to refer to a situation where the addition of salt (portable charges) alters the solubility of other molecules in water • Why should this be?

  26. Evaporation • First things first--what is it? What’s going on in terms of molecules • Experiment: Ethanol and water on your arm: which is cooler & why? • Prediction: based on molecular weight, which should evaporate more quickly--H2O (2 x 1 + 1 x 16) or CH3CH2OH (5 x 1; 2 x 12; 1 x 16) • If not, why not? • Salt in your sweat • What benefit might there be to adding NaCl to water that you are intending to evaporate?

  27. Clean up! • Oil waste in the hood • ethanol waste in the sink • anything too messy wadded up and discarded

  28. What’s vocabulary homework? • EITHER both versions of the crossword exercise • OR VocabuWary with a better than threshold score • For “Atoms & Molecules”, F12, that’s 60,000 • Errors count off. Slowness counts off.

  29. Homework due 10 p.m. before lab Extensive! In Depth! Next week’s quiz will include Concepts from today Atom colors Deducing partial charges (from tutorial) Manual Ch. 2 • Assessor: 181 Intro ’12 • Vocab Atoms/Mols: xWord(x2) or‘Wary • Assessor: Molecular World Tutorial

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