Bryan Tappen

CELL CYCLE/CELL DIVISION

INTERPHASE

• Cell growth occurs

• Chromatin is elongated and not visible

• Distinct nucleus

• DNA replication takes place

• Cell appears to be resting

http://faculty.ccbcmd.edu/courses/bio141/lecguide/unit6/genetics/DNA/DNArep/images/interphase1_pc.jpghttp://emt.bu.edu/em610/em610_ol_spring_2008/yanti/interphase_text.JPG

PROPHASE • Chromosomes become visible

• Nuclear membrane breaks down

• Centrioles and spindle fibers appear

http://indi.blogs.com/indica/images/mitosis1Prophase.jpg

http://www.cwinstead.com/prophase1.jpg

Metaphase

Chromosomes line up in the middle of the cell

Spindle fibers attach to the centromere of the chromosomes

http://media.smithsonianmag.com/images/HeLa-cells-metaphase-stage-2.jpg

http://upload.wikimedia.org

ANAPHASE

• Duplicated chromosomes separate

• Spindle fibers shorten pulling single chromosomes away from each other

• Cytoplasm division begins

www.uic.edu/classes/bios/bios100/lecturesf04am/anaphase1m.jpg

http://morganterhune3a.edublogs.org/files/2011/11/anaphase-q9m62s.jpg

TELOPHASE

http://www.broadinstitute.org/bbbc/BBBC018

http://www.edupic.net/cells.htm

Nuclear membrane starts to reformChromosomes begin to uncoil and become less visibleCytoplasm division occurring

CYTOKINESIS • The division of the cytoplasm

• Different in the plant and animal cells

• Plant cells, cells reach cell wall

• Animal cells, cells do no reach cell wall

http://www.sparknotes.com/biology/cellreproduction/mitosis/section3.rhtmlhttp://www.edupic.net/cells.htm

Cell cycleInterphase Cell growth occurs

Prophase Chromosomes became visible

Metaphase Chromosomes line up in the middle of the cell

Anaphase Duplicated chromosomes separate

Telophase Nuclear membrane begins to reform

cytokinesis The division of the cytoplasm