Cells - Biology 101

1. Describe two differences between prokaryotic and eucaryotic cells.

2. Which of the following had (or should have had) the slowest rate of diffusion?

   a)      dye in agar (gelatin)           b)  potassium permanganate in water

3. The diffusion of water molecules across a differentially permeable (semipermeable) membrane is called ____________.

4. Suppose that an investigator fills a dialysis tube with water and ties the ends.  She then places the tube in a salt solution.  What will happen to the weight of the tube after 30 minutes?

5. Elodea cells placed in a concentrated salt solution will:

   a.  name the process

   b. describe what will happen to the plasma membrane and to the cell wall.

6. State the function of each structure listed below.

   cell wall

   plasma membrane

   chloroplasts

   rough endoplasmic reticulum

   Golgi apparatus

   nucleus

   ribosomes

7. Which of the above seven structures are found in plant cells but not in animal cells?

8. Identify the cellular structures on a drawing of a cell: plasma membrane, nucleus, ribosomes, nucleolus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus, mitochondria, cilia, flagella, 

9. What type of cell (procaryotic or eucaryotic) is shown in the photograph below?

   

10. Name the extended structures on the cell photograph below..

    

11. What are the small green circles in the photograph below.

    

12. Describe what happened to the cells in the photograph below.