Training Camp Word Wall Choose one of the following words to draw a picture of and write a brief description about: -Mitosis -Chromosome -DNA -Interphase -Prophase -Metaphase -Anaphase -Telophase -Cytokinesis -Chromatid -Centriole -Spindle Fibers These will be going up on the wall, so try to write/draw large and neat enough for people to see them from theirs desks.

Panther time Rules and expectations -Once you come into the classroom, you sit down and stay in your seat unless you ask to get up -There will not be a seating chart unless you give me a reason to make one -No devices should be out unless the sign is flipped -I will spend time planning lessons and activities that I believe are valuable and worthwhile, so I expect you to participate and respect this time

Do now Get your journal* and… Take out your textbook and… Look on page 86 under The Life of a Cell and… Complete this sentence: DNA controls ___________ and is organized into___________. *If you don’t have a journal, get a blank piece of paper.

Mitosis BODY Cell Division (Chapter 3 : 3 p.86-89) Mitosis is the process in which the nucleus divides to form two new nuclei. Mitosis differs in plants and animals. A form of asexual reproduction – one cell divides into two 4

How do little elephants grow up to be BIG elephants?

How does skin heal itself? Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun.

Why do animals shed their skin?

There are 3 reasons why cells go through mitosis: 1. Growth 2. Repair 3. Replacement Cells that reproduce by asexual reproduction reproduce constantly.

Animated Mitosis Cycle http://www.cellsalive.com/mitosis.htm Interphase Prophase Metaphase Anaphase Telophase & Cytokinesis

Interphase occurs before mitosis begins Chromosomes are copied (# doubles) Chromosomes appear as threadlike coils (chromatin) at the start, but each chromosome and its copy(sister chromosome) change to sister chromatids at end of this phase CELL MEMBRANE Nucleus Cytoplasm

Interphase Plant Cell Animal Cell

Prophase 1st step in Mitosis Mitosis begins (cell begins to divide) Centrioles appear and begin to move to opposite end of the cell. Spindle fibers form between the centrioles. Centrioles Sister chromatids Spindle fibers

Prophase Plant Cell Animal Cell Spindle fibers Centrioles

Metaphase 2nd step in Mitosis Chromatids (or pairs of chromosomes held together by centromeres) meet in the middle of the cell and attach to the spindle fibers. Centrioles Spindle fibers

Metaphase Plant Cell Animal Cell

Anaphase 3rd step in Mitosis The centromere splits and the sister chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell. The separated chromatids are now called chromosomes. Centrioles Spindle fibers

Anaphase Plant Cell Animal Cell

Telophase 4th step in Mitosis A new nucleus forms around each identical groups of chromosomes at opposite sides of the cell and two new nuclei form. Chromosomes appear as chromatin (threads rather than rods). The cell membrane starts to move inward near the middle of the cell. Mitosis ends. Nuclei Nuclei Chromatin

Telophase Plant Cell Animal Cell

Cytokinesis occurs after mitosis The cytoplasm is completely pinched creating two identical daughter cells – each with its own nucleus with identical chromosomes.

Animal Mitosis -- Review 1                                                             2                                                              3                                                             4                                                              5                                                             6                                                            

Plant Mitosis -- Review 1                                                              2                                                              3                                                              4                                                              5                                                              6                                                            

Mitosis Foldable Use pages page 113 in your textbook and your notes to create a foldable showing both a sketch of interphase, the four stages of Mitosis, and Cytokinesis and a brief description next to it.

In Plant cells (and other cells with cell walls), a cell plate forms before the cell splits into two. The cell wall replaces the cell plate.

Cell plate

IPMATC REMEMBER! Interphase Prophase Metaphase Anaphase Telophase Cytokinesis IPMATC A mnemonic to help remember the stages of mitosis. Make your own acronym!

Cell Cycle

- Cell Division The Cell Cycle 28