Download Name Period _____ Date

Name ____________________________________ Period _____ Date _____________________
Notes - Cell cycle and Mitosis
1) _______________________ is the time between cell division where the cell grows to full
size, duplicates its ___________ and ________________
2) The 3 (4) stages of Interphase are _______, ________, _______ and __________
3) Cell cycle diagram
4) G1 Phase. – G = ____________. Cells ______________ to normal size and _________
are made.
5) G0 phase – Is the ____________________ Phase. The cell is _____________ during
this phase and undergoes normal _____________________________ while resting. Cells
that skip this phase can become ______________________ growing _________________
6) Check points – Places where cell checks itself for _______________ before proceeding.
_____________ bypasses the checkpoints
7) S Phase – S = ________________________
Where DNA is ________________ or
_____________ in preparation for cell _____________________
8) Once a cell enters the S phase it is committed to g through ____________ ____________
(the point of ___________________________)
9) G2 Phase – G = _________________________ Cells grow larger in preparation for
______________ ___________________
10)Cell Division – The way a cell __________________ itself. There are 2 steps.
______________ followed by ________________
11)M phase = _______________________ The division of the _____________
DNA forms into___________________. Chromosomes with identical pairs move to
_____________ sides of the cell and a new ______________ _____________ forms
around each set of chromosomes
12)Chromosomes = _______________________ __________________________ appear
only during ___________________
13) Label
Stages of Mitosis label parts
1) Prophase – Cell begins mitosis. DNA coils up forming chromosomes. Spindle fibers form.
Centrioles appear
2) Metaphase – Chromosomes line up along center. Centrioles migrate to poles. Spindle
fibers attach to Chromatids
3) Anaphase – Spindle fibers pull duplicate Chromatids apart. Chromatids migrate to
opposite poles
4) Telophase – Chromatids gather together on separate sides. Nuclear membrane forms
around chromosomes making 2 separate nuclei. Cell membrane starts to pinch together
5) Cytokinesis = C phase. Division of the cytoplasm and organelles between the cells. The
cell membrane closes off each cell. 2 new daughter cells form, each an identical copy of
parent cell. But smaller
•
Interphase AGAIN. Each daughter cell enters interphase, so it can ____________,
______________ and be a normal cell