Transcript Cell Cycle (Mitosis)

Cell Cycle (Mitosis)
Mr. Alvarez
7th grade Health
California State Standard
Cell Biology (Mitosis)
1. All
living organisms are composed of
cells.
e. cells divide to increase their numbers
through a process of mitosis, which
results in two daughter cells with
identical sets of chromosomes.
Cell Cycle 6 phases
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Phases of
Mitosis
The Complete
Cell Cycle
Chromosome Structure
Centromere
Chromosome Structure
So 1 chromatid
+ 1 chromatid =
1 Chromosome
1 chromatid
1 chromatid
Interphase
THE CELL:
grows
to it’s mature size
Copy of its
makes a _____
DNA
Divide
prepares to _______ into
two cells
The DNA
condenses
Prophase
the
Chromatin condenses
__________
(gets thicker) to form
chromosomes, which are
two chromatids attached by
Centromere
a ____________.
Spindle fibers stretch out to
_______
opposite ends of the cell
the
nucleus breaks down
Metaphase
the Chromosomes
__________
line
up in the middle of the
cell
spindle fibers attach to
Centromere of the
the __________
chromosomes
Anaphase
Centromeres
____________
split and the
chromatids separate
chromatid to opposite ends
of the cell being pulled by
Spindle Fibers
the ___________
the cell begins to become
stretched out
Telophase
the
Nucleus
__________
reappears – two nuclei
but one cell
chromosomes begins
to loosen up (start to
become string again)
Cytokinesis
the
cell divides and two
Daughter
new ___________
cells
are formed
chromosomes loosen up
and become chromatin
again