UNIT 4
DAY 2
CELL MEMBRANE AND CELL TRANSPORT
Opener
• The diagram below shows a section of the lipid bilayer.
• Draw it. Label the hydrophilic/polar portions, and the
hydrophobic/non-polar portions.
• Why does this structure make sense, given that the cell
membrane exists in a water environment?
hydrophilic
hydrophobi
c
Agenda
• Apology
• Lab Report: due next Friday
• Check In: Device policy
• Modeling Transport across the cell membrane
• Deconstructing the AP Free Response
Check In: Device Policy
• OK!
• Not OK!
• Look up information
• Student or teacher
• Listen to music during
speaking to the class
• During a test
• During group work
• During lecture/note
taking
individual work time
(playlist only)
• Using electronic planner
• Accessing, checking and
adding to electronic
assignments
• Breaks (ONLY time OK
for Madden, Snapchat,
Trivia, etc.)
TABLE GROUP SHUFFLE!
Modeling Cell Transport
• Work with a partner AT YOUR TABLE
• Roles: Doer and Explainer. Each partner will play BOTH
roles.
• What to do:
• Cut out the molecules/ions on the sheet (FAST)
• Tape your cell membrane model sheets together (see example)
• Use the molecules/ions to model the cell transport described in
each scenario
• Each scenario: pick a role, model transport, then switch roles
• Use the animated tutorial (Section 10)
• You have 30 minutes
Free Response Deconstruction
• Three questions:
• 2003 free response (actual test)
• 2013 free response (actual test)
• 2012 free response (practice test)
• #3, 2003 exam.
• Read the question CAREFULLY
• What are the different areas of understanding of Biology do you
have to access to answer this question?
• Try, as a TABLE GROUP to answer the question (all of the parts, or
as many of the parts as you can). Don’t be afraid to infer, answer
incompletely or make reasonable guesses.
Deconstruction, continued
• #1, 2013 exam
• Read the question CAREFULLY
• What SKILLS do you need to answer this question?
• What KNOWLEDGE do you need to answer this
question?
• Can you answer this question if you have never done a
similar experiment?
Exit Ticket
• Make a connection between the modeling activity and the
first Long Term Learning Target for this Unit. In other
words, why did we do this?
Homework
• Read the background information for the lab next week (at
the end of the packet)
• Answer the pre-lab questions
• Read Part. You should know how to set up and carry out
the experiment when you walk in on Wed.