Week+7+Organelles

=**Weekly Content**= This week we will be looking briefly at the different types of organelles found in cells and their key functions.

=Practical= This week's Practical will help demonstrate the importance of the SA:VOL ration on the efficiency of diffusion and how the 3-D shape of a cell can affect its ability to acquire nutrients and excrete waste.



=Reading and Other Media= Here are a few interactive activities that will help you to learn the structure and functions of organelles in different types of cells.
 * [|Cell Structure of Prokaryotic, Animal and Plant Cells]
 * [|Inside Animal and Plant Cells]
 * [|Cell Structure and Function Drag and Drop]

=Homework= 1. Complete all the questions from the practical on cell size and diffusion. 2. Complete both sides of the worksheet handout on cell organelles. 3. Complete the following Webquest questions:

Webquest
1. Why do some plant cells have chloroplasts but animal cells don't? 2. Explain why the cell wall of a plant contains cellulose? 3. What is the reason for the difference in size of the nucleus and vacuole in plant and animal cells? 4. Which organelles have double membranes? Can you explain why this is the case? 5. Organelles work together to form a functioning cell within a cell. Find an example of a relationship between the function of one or more organelles and post it on the [|Organelles Working Together wallwisher].