Mitosis and Cell Cycle2116
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Transcript Mitosis and Cell Cycle2116
Mitosis
A form of eukaryotic cell division that produces two daughter cells with
the same genetic component as the parent cell.
Words to know
Starting text page 67
Photosynthesis
Respiration
Fermentation
Replication
Cell Cycle
Chromosome
Chromatid
Cytokinesis
Centromere
Mitosis
Mitosis is a form of eukaryotic cell division that produces two daughter
cells with the same genetic component as the parent cell.
Chromosomes are replicated.
Chromosomes are divided in such a way as to ensure that each
daughter cell receives a copy of every chromosome.
In actively dividing animal cells, the whole process takes about one
hour.
The length of the Cell Cycle depends on the type of cell.
Human liver cell takes 22 hours.
Human brain cell never leave Interphase.
Podcast
Mitosis
http://www.youtube.com/watch?v=1cVZBV9tD-A
The Cell Cycle
The regular series of growth and cell division
Stage 1
Stage 2
Stage 3
Interphase
Mitosis
Cytokinesis
Cell Cycle
Cell Cycle
Interphase
Cell grows to mature size
Cell makes a copy of DNA
Cell prepares to divide into 2 cells
Mitosis
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Cell membrane pinches inward
Each daughter cell winds up with identical chrosomomes
Organelles and cytoplasm are sent to each daughter cell
Cell Division by Mitosis
Mitosis
Prophase
Chromatin condense
Spindle fibers form bridge
Nuclear membrane breaks down
Metaphase
Chromosomes line in middle
Chromosomes attach at spindle fiber
Centromeres hold chromosomes together
Anaphase
Centromere splits
Chromatids move to opposite sides
Cell becomes stretched at either end
Telophase
New nuclear membrane forms
around each region of
chromosome