Monday, March 7, 2011

3/7/11 Blog


Today in class we were working on the worksheet we got last Friday. We used microscopes to look for cells in the process of mitosis. Some reminders with the microscopes are that when you are using low power, remember you are looking at a lot of cells instead of only one cell. The worksheet answers are:




1) You are looking at cross-sectional slices of the the tip of an onion root. Why might you expect an onion root tip to have cells that are dividing?




A: Since it's the root of an onion, it needs to expand to get water that's why the root needs to expand.




2) Find and look at all three of the slices briefly. What are the dyed objects inside of the cell?




A: For our group the dyed objects are nuclei.




3) Is there evidence of cellular division? Explain.




A For our group we said that yes because there were two nuclei.




For #4 you had to draw pictures of the cells and for #5 you had to use the pictures!!!




- Maria Cordero #4

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