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Cell Division

Chapter 10 pg. 240
by

Jenny Weir

on 2 January 2017

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Transcript of Cell Division

CELL DIVISION
Mitosis
(t for two cells)
Functions of Cell Division
Growth
Repair
Reproduction
Cell Cycle
a cell grows, prepares for division, and divides into two new cells called "daughter cells".
Three main stages:
Interphase
Mitosis
Cytokinesis
Interphase
grows to full size
copies DNA
produces other needed structures
includes G1, S, G2
Prophase
chromosomes become more coiled
nuclear envelope dissolves
centrioles move to opposite ends of cell
Metaphase
chromosomes line up
nucleus is missing
Anaphase
chromosomes pulled apart to opposite ends of cell
Telophase
two new nuclei
no spindle fibers
cell is pinched around the middle
MITOSIS
Cytokinesis
cell splits into two daughter cells
contains 1/2 the organelles of the parent cell

animal cells: cell membrane squeezes together around middle of cell and pinches into two cells

plant cells: cell plate forms across middle of cell

new cell membranes form between daughter cells

new cell walls form around cell membranes
Full transcript