Topic Two (1.2): Cells

The first and most important part of this topic is to learn the structures and functions of both plant and animals cells including: nucleus, cytoplasm, cell wall, chloroplasts and vacuoles. You need to be able to identify these on both animal and plant cells. Pay close attention to the fact that plant cells have structures that are not found in animal cells (cell wall, chloroplasts and vacuole).

You will need to be able to complete a biological drawing of a cell and calculate its magnification or size in micrometres.

You must learn how the cells relate to their specific function: ciliated epithelial cell (in respiratory tract), root hair cell (absorption), red blood cell (transport), palisade mesophyll cell (photosynthesis), sperm and egg cells (reproduction). 

 Reading

Please read through and make notes on cells (pages 3-9). Review the activities on pages 4 and 5, and practise the skills noted on these pages. If you have access to a microscope you might be able to complete the activities on page 7. Practise drawing cells. Complete the in-text questions and check your answers.

 Links

EXPLORE - Plant vs Animal Cells (Twig) Links to an external site.

WATCH & QUIZ - Different Types of Cell (Twig) Links to an external site.

WATCH - Magnify (Twig) Links to an external site.

WATCH - Calculating Magnification of Drawings (YouTube) Links to an external site.

 Download

Download and read through the PowerPoint resources Cells Download Cells

 and Cells and Tissues Download Cells and Tissues

.

 Skills

Biological Drawings. Ensure you can draw a biological specimen following all the rules for drawings: clear and continuous lines, use of a sharp pencil, no shading, with ruled label lines touching the specimen.

You must be able to calculate magnification, using the formula:

Convert millimetres to micrometres by dividing the value in mm by 1000.

 Review

Complete Questions on Cells pages 8-9. Check your answers.