-Happy Monday!
-If I call your name you still need to show me a completed '10.1 Reading Worksheet' for 35 points...
-REMINDER: All work due by this Thursday, April 9th! :)
-Honors students: show me your project plan by 4/9. You will present your project during lunch on 4/14 or 4/16.
-Photo of onion root tip cells undergoing interphase or mitosis here
-Work with lab partners to finish Mitosis Lab (due 4/9)
-Record your Mitotic Index on the class data sheet
*Points of clarification on Mitosis Lab:
-The total number of cells you count should be around 50, as indicated on page 1 of your lab packet under procedure step 3.
-Cells with a only a darker, round nucleus visible are in INTERPHASE
-Cells showing various versions of unwound, separated strings of chromosomes are in MITOSIS
(refer to the photos at the bottom of page 1 or the middle of page 2 of lab packet for clarification if you have a hard time differentiating the phases of the cells)
-(From page 2) "The meristematic region in the root tip is the actively growing region and thus the mitotic index is high" compared to other regions of the plant
-Read page 4 'Mitosis & the cell cycle' and go over flow chart
together (used to understand the amount of time a cell spends in interphase versus mitosis)
-Why do you think you saw most cells in interphase???
-Turn in lab packet for 30 points before you leave
-Tomorrow: finish 10.2 & do 10.3 Regulation of Cell Growth & Division
CHAPTER 10 STUDY MATERIALS: 10.1 quiz & answer key; 10.2 quiz & answer key
10 PTS EXTRA CREDIT: MAKE CHAPTER 10 VOCABULARY FLASH CARDS!
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