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Mitosis
cycle and steps of mitosis
43
Biology
10th Grade
01/19/2010

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Term
interphase
Definition
phases of the cell that occur between cell divisions
Term
prophase
Definition
first and longest phase of mitosis
Term
chromatids
Definition
two identical copies of chromosomes that appear during PROPHASE
Term
centromere
Definition
area where the chromatids are connected
Term
centriole
Definition
tiny structures in animal cells that help to organize microtubules
Term
spindle
Definition
cluster of microtubules that span the nucleus
Term
metaphase
Definition
second and shortest phase of mitosis
Term
anaphase
Definition
phase of mitosis in which the duplicated chromosomes seperate from one another
Term
telophase
Definition
fourth phase of mitosis in which distinct nuclei are formed
Term
cytokinesis
Definition
process in which the cytoplasm of a cell divides
Term
cell division in eukaryotes is                    as cell division in prokaryotes
Definition
exactly the same
Term
prophase, metaphase, anaphase, telophase
Definition
the four phases of mitosis in order
Term
G1, S, and G2 phases of the cell cylce are called
Definition
interphase
Term
the cytoplasm of a celll divides during...
Definition
cytokinesis
Term
cytokinesis in animal cells           from cytokinesis in plant cells.
Definition
differsss
Term
no spindle, cell wall, and cell plate
Definition
plant cells
Term
spindle fibers attach to
Definition
sister chromatids
Term
the microtubules of the spindle apparatus begin to shorten during          
Definition
anaphase 
Term
sister chromatids seperate during              
Definition
anaphase
Term
the chromosomes arrive and begin to relax during           
Definition
telophase
Term
two nuclear membranes begin to form during            
Definition
telophase
Term
the spindle apparatus disassembles during             
Definition
telophase
Term
microfilaments constrict, or pinch the cytoplasm
Definition
cytokinesis in animal cells
Term
a new structure, called a cell plate is formed
Definition
cytokinesis in plant cells
Term
phase where the cell replicates
Definition
S phase
Term
why does a cell divide?
Definition
cell division prevents the cell from becoming too large, also is the way the cell reproduces so you can grow and heal from certain injuries
Term
the stage during which the cell grows, carries out cellular functions, and replicates
Definition
interphase
Term
the stage of the cell cylce during which the cell's nucleus divides
Definition
mitosis
Term
a cell's cytoplasm divides, creating a new cell
Definition
cytokinesis
Term
replication takes place in the
Definition
S PHASE
Term
the sister chromatids are attached at the centromere during           
Definition
prophase
Term
spindle fibers form in the cytoplasm during                
Definition
prophase
Term
G1 phase
Definition
the cell grows and performs normal functions
Term
S phase
Definition
synthesis, DNA is replicating
Term
G2 phase
Definition
cell prepares for mitosis
Term
prokaryotic cells
Definition
unicellular organism without a nuclues or membrane-bound organelles
Term
eukaryotic cells
Definition
unicellular organism with membrane-bound nucleus and organelles;larger and more complex
Term
what do the centrioles do during prophase?
Definition
migrate to the poles/ends of the cell
Term
what forms the spindle?
Definition
aster fibers
Term
                   attach to spindle apparatus and align along equator of cell
Definition
chromosomes
Term
at the end of metaphase                        
Definition
ensures the cells have accurate copies of chromosomes
Term
during                the sister chromatids are pulled apart into two seperate chromosomes
Definition
anaphase
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