ap biology - plasma membranes & fluid mosaic model
originally streamed in 2020 with Jessica NadzamTeachercurriculum note
The FRQ practice problem at the end of this video is acknowledged by the instructor as approximately a decade old and may reflect an outdated rubric format; check current AP Biology FRQ guidelines for the most up-to-date scoring criteria.
covered in this stream
timestamps
- 0:00
Introduction to Plasma Membranes
- 0:30
Phospholipids Overview
- 1:33
Phospholipid Structure
- 2:36
Lipid Non-Polarity
- 3:37
Phosphate Head Polarity
- 5:14
Amphipathic Quality
- 6:50
Bilayers and Micelles
- 8:24
Micelle Formation
- 10:27
Phospholipid Bilayer
- 11:59
Why Bilayer for Cells
- 13:32
Plasma Membrane Flexibility
- 17:13
Membrane as Barrier
- 21:25
Membrane Proteins
- 23:31
Protein Functions
- 26:40
Aquaporins for Water
- 28:42
Maintaining Homeostasis
- 31:51
Role of Cholesterol
- 34:29
Fluid Mosaic Model
- 38:08
Practice Question 1
- 39:09
Practice Question 2
- 40:12
Practice Question 3
- 41:15
Practice Question 4
- 42:17
FRQ Practice Prompt
- 43:48
FRQ Scoring
- 45:26
Session Wrap-Up
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