Study Guides

Unit Summary

This unit explores cell structures, their functions, and differences between plant and animal cells. It includes adaptations of unicellular organisms and the organisation of multicellular organisms. Skills in using safe techniques, recording data, and evaluating methods in lab work are developed.

Lesson Summary

You will learn to prepare a microscope slide with a specimen of tissue, observe it using a microscope, and record your observations in a scientific line drawing.

Key Notes

• The cells that make up tissue can be viewed using a light microscope.
• A sample of tissue can be prepared on a slide to view using a microscope.
• Adding a stain can make it easier to see some parts of cells.
• Changing the magnification and focus of a light microscope enables stained cell structures to be observed.
• Observations from a light microscope can be recorded in a scientific line drawing.

Vocabulary To Learn

• tissue: A tissue is a group of similar cells with the same job working together.
• slide: To observe a specimen using a light microscope, we have to put a thin layer of it on a glass microscope slide.
• stain: A coloured liquid put onto a specimen so that the cells and their structures can be more easily seen with a light microscope.
• scientific line drawing: Observations from a light microscope can be recorded by making a labelled scientific line drawing.

Common Mistakes To Avoid

• Producing a line drawing with sketched broken lines, shading, no labelling and no magnification.

3 Quick Questions (With Answers)

More Lessons In This Unit

• Animal cell structures and their functions Study Guide
• Multicellular and unicellular organisms Study Guide
• Observing cells with a light microscope Study Guide
• Plant cell structures and their functions Study Guide
• Specialised cells are adapted for their functions Study Guide
• The common processes of all living organisms Study Guide