Orrs teaching assignments at KU

1
Orrs teaching assignments at KU

• Introductory biology course for science majors
• 500 students
• Upper level undergraduate physiology course
• 250 students

2
Active learning in the large classroom

• Individual student response systems Clickers
• Extra credit questions
• Create a random list of names for each class
  period.
• Students are awarded two extra credit points for
  participating.
• Skits
• Visualization with props
• Reading assignments with follow up quizzes

3
Skits and Props

• Ionic bonds
• Signal transduction
• Protein structure

4
Chemical bonds

• Ionic bonds
• Electron from outer energy shell of sodium is
  lost to chloride creating a positive ion (Na)
  and negative ion (Cl-). The two ions are
  attracted to one another to form an ionic bond.

5
Marigold Linton Clif Poodry Aaron Reed Irma
Santoro Leslie Lerea Erin Keen-Rhinehart Brena
Mauck
6

• My dearest Chloride
• I have always admired you from afar,nearly 16
  columns away in the Periodic table, so far yet so
  dear.
• You are so beautiful, my dearest chloride, your
  full C, your slender L I want to be near you.
• Oh, chloride, I am willing to share the one
  electron that I have in my outermost energy
  shell.

7

• Ney, sharing electrons is the love of mere
  mortals, we are destined for more than mere
  covalent bonding.
• Rather I ask you to accept completely and forever
  the electron from my outer most energy shell.
• I give you this electron so that your outermost
  energy shell is complete. I will remain
  positive you will forever shine as negative.

8
 

• My dearest Sodium
• Oh, how my atomic mass trembled when I read your
  letter. I accept your electron, I am now
  negative, you are positive!
• My outermost energy shell is complete! But we
  cannot be apart. We must bond and with your
  positive charge and my negative charge, we can
  now form an ionic bond.
• The molecules that are bonded by weak hydrogen
  bonds will envy the strength of our bonding.
  Yes, there is no atomic love greater than the
  ionic bond. I am yours forever.

9

• Signal tranduction pathways cyclic AMP as a
  second messenger

10
Okecukwu Ukairo Ellen Tarr Shawn Drew Karen
Strunk Larry Brunton Kristen Walton
11
Toni Jones Elyse Lee Claudia Bode Wilfred
Denetclaw Ray Pierotti Jeff Riffell
12
Signal tranduction pathways cyclic AMP as a
second messenger

• Signal molecule binds to receptor in plasma
  membrane
• ?
• G protein in plasma membrane of target cell is
  activated
• ?
• Adenylyl cyclase is activated
• ?
• Adenylyl cyclase converts ATP to cyclic AMP
• ?
• Cyclic AMP activates protein kinase A
• ?
• Protein kinase A phosphorylates enzymes

13
Protein structure

• 1 structure sequence of amino acids
• 2 structure alpha helix, beta sheet
• 3 structure folding of the alpha helix onto
  other segments of the helix
• 4 structure aggregation of two or more
  polypeptide chains

14
Cassandra Delgado-Reyes Mike Wacker Kimberly
Lane Sonia Vass Douglas Eaton Sharon Ngwenya
15
The logistics of teaching a large class

• Emails Use the course web site to limit
  emails.
• Grades Final grades are not curved in this
  class!
• Keys to the exams Check twice, grade once!
• Exams (Make-up exams) On multiple choice
  exams remove the answers.
• Evening exams Dont! Half the class works
  the evening shift for UPS!

16
Kent Wiles Karen Kay Resendes Wendy
Marussich Leocadia Paliulis Maria Eifler Edgar
Gutierrez Latarchal Morton
17
Bob Pozos Brooke Bourdelat-Parks Chris
Haufler Natasha Wiles Nicholas Strausfeld Anne
Casper Russ Middaugh
18
Britt Kern Kathryn Perez Eva Lacy Francisco
Cruz Eric Ganko Dale Beach
19
Ian Joseph Alessandra Barrera Ruben Alarcon Anne
Calhoon Julie Shaffer Beverly Medley Shauna
McGillivray
20

• A sample of DNA is analyzed and it is determined
  that 38 of the nucleotides have adenine as a
  nitrogenous base. Which nucleotide / nitrogenous
  base would have an equivalent (i.e., 38)
  concentration in this DNA sample?
• a. thymine
• b. uracil
• c. cytosine
• d. guanine