Date post: | 05-Dec-2014 |
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The Life Cycle of a Cell
The Cell Cycle and Mitosis
Are all cells doing the same thing at the same time?
Find examples of cells that look like they are doing something different.
The Cell Cycle
A cell spends most of it’s life in what part of the cell cycle?
Mitosis- making a new nucleus, then a new cell
Steps of Mitosis
Chromatids
Cell WallCytoplasm
Interphase
What phase is the cell shown in? Prophase
The original and duplicate strands of DNA are called sister…. Chromatids
What disappears during prophase?
Nuclear membrane, nucleolus
What phase is the cell shown in? Metaphase
Where are the chromatids located during metaphase? Middle
What’s another name for the center or middle of the cell? Equator
What phase is the cell shown in? Anaphase
What attaches the chromatids to the spindle fibers? Centromere
What phase is the cell shown in? TelophaseWhat reappears in this phase?
Nuclear membrane, nucleolus
Cell plate
How does cytokinesis differ in this cell from the one shown in the previous slide?
What are the two organelles (circled in red) that migrated to opposite poles of the cell during prophase called? CentriolesWhat role do these organelles play in cell division? They form the spindle apparatus
What do we call the two cells formed from mitosis?
Daughter cells
What are the three parts of interphase called?
G1G2
Synthesis
What happens to the DNA during the synthesis stage? Duplication
Why do we duplicate the DNA during interphase?
So that the daughter cells have the same information as the mother cell!