Name ___________________________ Date Due ________________ Cell Size Lab Purpose: To determine the size of three different types of cells. The cells are human red blood cells, human cheek cells and onion cells. Hypothesis: The _________ cell is the largest because _____. The ___ cell is middle sized because _____. The ____cell is the smallest because _____. Materials: List all the materials used during this lab investigation. Procedure: There will be 3 sections, one for each cell type. For each cell type write the exact step by step instructions for what you did. Data: The data table should have the size of each cell under low power including the calculations, and the size and calculations under high power. You may design the table as you wish. Analysis: Try to determine why the largest cell is the largest &/or why the smallest is smallest. (Hint: Think about function). Under which magnification do you think you got the most accurate results? Why? List at least 4 possible sources of error using this measurement method. The red blood cell is unusual in its internal structure. What is the unusual feature? Conclusion: Was your hypothesis correct? Discuss results. At the end of the lab attach drawings of exactly what you see under low power and under high power. Use colored pencils and label each drawing with what it is and the magnification. I have “circle paper” you can use for this. The final lab report should have a cover.
Name ___________________________ Date Due ________________ Cell Size Lab Purpose: To determine the size of three different types of cells. The cells are human red blood cells, human cheek cells and onion cells. Hypothesis: The _________ cell is the largest because _____. The ___ cell is middle sized because _____. The ____cell is the smallest because _____. Materials: List all the materials used during this lab investigation. Procedure: There will be 3 sections, one for each cell type. For each cell type write the exact step by step instructions for what you did. Data: The data table should have the size of each cell under low power including the calculations, and the size and calculations under high power. You may design the table as you wish. Analysis: Try to determine why the largest cell is the largest &/or why the smallest is smallest. (Hint: Think about function). Under which magnification do you think you got the most accurate results? Why? List at least 4 possible sources of error using this measurement method. The red blood cell is unusual in its internal structure. What is the unusual feature? Conclusion: Was your hypothesis correct? Discuss results. At the end of the lab attach drawings of exactly what you see under low power and under high power. Use colored pencils and label each drawing with what it is and the magnification. I have “circle paper” you can use for this. The final lab report should have a cover.
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