AP Biology Lab 11: Pre-Lab
Perhaps one of the most difficult fields of biology to study is ethology, the study of animal
behavior. Observation of a behavior is simple; interpreting what has been observed requires more effort;
The Plasma Membrane
Part 1: what controls the movement of materials into and out of the cell?
1. To be alive, most cells must maintain a relatively constant internal environment. To do this, they must
be able to control the movement ofmaterial
In This Lesson:
(Lesson 3 of 5)
Osmosis Practice Problems
Good practice for test-taking
By the end of this lesson
You should be able to solve word problems
that require analysis of osmosis scenarios.
If you so
Advanced Placement Biology
Introductory Water Potential Worksheet
Write Value A)
Write Value (B)
1. Pressure Potential
Fun with Water Potential!
Botanists use the term water potential when predicting the movement of water into and out of
plant cells. Remember, the movement of water across a semi-permeable membrane as it follows
its own concentration gradient is osm