Name: Date: Block:

Task: What are Prokaryotic and Eukaryotic Cells and how are they different?

PRELAB QUESTIONS:

Use the URL below and the designated links to navigate through this activity and familiarize yourself with cell structure and functions. http://learn.genetics.utah.edu/content/cel ls/

Scroll to the bottom of the page and look in the box labeled .

1. Who is Robert b. What organism did he retrieve his Hooke? sample from? c. What are cells?

a. When did he make his big discovery?

Click on the link. 2. Record the measurements of the following items, then place them in order from smallest to largest:

X Human Hemoglobi chromoso egg cell n me Skin cell Phospholip Mitochond Amoeba id Water ria Red Parameci molecule blood cell um Carbon

ribosome Nucleus (use the skin cell for atom reference) Lysosome HIV E.coli

3. List the objects you recorded above from SMALLEST TO LARGEST

Smallest ------Largest 4. When using a microscope, which ORGANELLES will be the easiest to see, which will be the hardest?

5. Click on the INSIDE A CELL link: What are the parts of a eukaryotic cell? PURPOSE: To practice using the microscopes and develop drawing skills. To determine which cells are the easiest/most difficult to view and use this information to determine if the cell is prokaryotic or eukaryotic using our classroom microscopes. PROCEDURE:  Identify each slide on low and high power. Identify and draw any parts of your cell on high power. When drawing, be sure to include as much detail as possible and make sure your drawing is true to colors that are there.  Identify the slide as either prokaryotic or eukaryotic.  Justify WHY you feel the slide shows a prokaryote or eukaryote. DATA: Table 1 Comparison of Cells What Cellular Organism structures can you Drawing of Cell Prokaryote or Eukaryote Evidence/Reasoning see? Bacteria

Amoeba

Yeast

Plant Cell

Nerve Cells

CONCLUSION: (claim, evidence, reasoning) What are prokaryotic and eukaryotic cells and how are they different?