The Cell Cycle: Interphase, Mitosis and Cytokinesis

Animal Cell

Stages of the Cell Cycle: Low Power (100x)  Do NOT observe and draw you’re the cells under scanning power or low power. As you can clearly see, it is too difficult to make out the different phases of mitosis under low power

 Even though you will not be observing any of the slides under scanning power and low power, you still need to find and focus each mitotic phase using low power.

Stages of the Cell Cycle: High Power (400x)  As you can clearly see, it is much easier to tell the different phases of mitosis from one another under high power. Draw all your pictures under high power.

Interphase (400x)  The green arrows are pointing to cells in Interphase. Since Interphase is the longest phase of the cell cycle, most of the cells you observe will be in Interphase

Prophase (400x)  The green arrows are pointing at cells in Prophase. The dark structures are chromosomes.

Metaphase (400x)  The Green arrow is pointing a cell in Metaphase. Notice how all of the chromosomes are lined up across the middle of the cell.

Anaphase (1000x)  The green arrow is pointing at a cell during Anaphase.

Telophase (1000x)  The green arrow is pointing a cell in Telophase and it is about to begin Cytokinesis. Notice how the cytoplasm is about to split in two.