journal week: 11, monday, november 5th list any facts you already know about mitosis…identify...
TRANSCRIPT
Journal Week: 11, Monday, November 5th
List any facts you already know about Mitosis…identify vocab words you know….what is the function? What types of cells does it occur in? Are they identical or different?
After answering the Journal Question….Look up on the board and find the large lined paper….Make 4 pages in your notebook look like that! Label them accordingly!
Miss HannaBiology
The Cell Cycle: Growth & Division of Body Cells
1) Types of Cells…they all need to grow and divide!
Body CellsSex Cells- Gametes
Why????
2) Types of Reproduction2a) Mitosis/ The Cell Cycle
Body cellso46 Chromosomeso2 Sets of 23 Chromosomes
2b) MeiosisSex cells
MitosisReproduction of Body Cells /
Division of NucleusCertain cells reproduce all the
time.Skin cells
Certain cells only reproduce once.Brain cells
Cell Cycle Vocabulary: Chromosome:Histone:Chromatin:Chromatid:Centromere:
You will define later! Write these on your colored paper square! You will glue/tape this in later.
2a) Body Cell Reproduction Stages“The Cell Cycle”
i) The Cell Cycle has 2 stages/phasesGrowth & Division
Growth Phase = Interphase Division = Mitosis & Cytokinesis
ii) Within the Cell Cycle, Mitosis has 4 stages/phases
Prophase Metaphase Anaphase Telophase
The Cell Cycle as a whole:A)Interphase
G1 S G2
B) Mitosis C) Prophase D) Metaphase E) Anaphase F) Telophase
G) Cytokinesis
A) InterphaseCell grows in size, Make Organelles and
ProteinsDuplicates DNAChecks for mistakes and make sure
everything is needed for cell reproductionG1 phase cell grows to double in size and
makes copies of organellesS phase chromosomes are
replicatedG2 Prepares for division
ANIMATION!http://www.cellsalive.com/cell_cycle.htm
BC) Mitosis- ProphaseNucleus begins to break downLongest stage of MitosisSpindle fibers begin to appearChromosomes condense andSister chromatids (DNA) appearCentrioles move to opposite sides of the nucleus
D)Mitosis- MetaphaseSister chromatids (DNA) line up in
middle of cell on spindle fibers, centromeres attach to spindles
Centrioles connect to each end of the spindle fibers
E) Mitosis- AnaphaseSister chromatids (DNA) split at
centromeresSister chromatids (DNA) move to
opposite sides of cell
F) Mitosis- TelophaseChromosomes at opposite endsCell begins to pinch and form 2
new daughter cellsNucleus reforms in each cellNew Nuclei in each cellMitosis is finished
G) CytokinesisDivision of the cytoplasm and
organelles in the cellTwo new IDENTICALcells made
Clicker Concept Quiz1)Which of the following best represents the 4 stages of Mitosis in order?
A) Metaphase, Telophase, Cytokinesis, Prophasse B) Telophase, Prophase, Metaphase, Anaphase C) Prophase, Metaphase, Anaphase, Telophase D) Telophase, Anaphase, Metaphase, Prophase
2) (Choose 2) What phases of the cell cycle are not a part of Mitosis? A) Metaphase B) Cytokinesis C) Anaphase D) Interphase
3) Which structures aid in pulling sister chromatids apart in cell division? (choose all that apply)
A) Centrioles B) Spindle Fibers C) Membrane D) Cytoplasm
4) Which words best describes the cells produced from the cell cycle? A) Different B) Opposite C) Identical D) Haploid
5) True/False: Mitosis is the division of the nucleus in somatic (gametes) cells.