Journal Week: 11, Monday, November 5th List any facts you already know about Mitosis…identify...

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.