Methods of Studying Cells AQA A-level

Lesson objectives:

• Explain the principles of magnification and resolution
• Describe what cell fractionation is
• Explain how ultracentrifugation works

All resources included!

This lesson introduces topic 3 cell structure of unit 2 cells. The lesson begins with a video to introduce to students how many different units of distance there are. This is to prepare students for the use of the smaller units of distance. The lesson continues to introduce magnification and resolution to students, providing a definition. The lesson moves on to the introduction of the magnification equation and the conversion of units. Students have a table to copy and complete to practice converting units. Students can then practice the equation using a pre-made worksheet. Students can self-assess answers when finished. The lesson continues with a task for students to summarise cell fractionation and homogenation. Further tasks are included to include differentiation. The lesson ends with task on ultracentrifugation, that is also self-assessable.