Title: Activity Ahead of Lesson: Osmosis and Tonicity:
Course: Biochemistry > Section: Week 8 - Unit 3_2: Membrane Transport Mechanism

Purpose

In this activity we are going to establish our understanding of how osmosis (the movement of water, through semi-permeable membrane) works and the passive transport potential of tonicity.

Over to you

Watch this short video on osmosis and tonicity.

Then watch it again, making the notes suggested in the activity.

Be certain to note anything that you don’t understand.

Activity

As you watch this animation, make notes of what you understand by

- Polarity of molecules
- Semi-permeability of a membrane
- The trigger for osmosis to occur
- Isotonic concentration
- Hypertonic concentration
- Hypotonic concentration

Bring your notes to class so that you can participate in the conversation about osmosis.