AGENDA ABSENT MON 2/11 week-6 GENERAL TOPIC: MITOSIS- THE DETAILS CONT OBJ : 5-6 DO NOW: NONE EXT: --- DUE DATE: --- DW: --- EXAM P1 FRIDAY [9.1-9.2] ------------------------------------------------------------------------------- -REV 9.1 APP NTS [front] -COLLABORATIVE 9.2 APP NTS [back] -REVIEW back ---- S.C. table top REVIEW HANDOUTS to PICK-UP: - TURN IN to ABS box: - SEMINAR : - BEFORE SCHOOL/RAVEN-50: DW- NONE EXIT: CIRCLE LEVEL of UNDERSTANDING [see slide]
WEEK 5 WEEK IN REVIEW TURN IN NOW
UNIT OBJECTIVES 9.2 MITOSIS and CYTOKINESIS 5-DESCRIBE / RECOGNIZE the events of each stage of mitosis -key structures -chromosome appearance 6-EXPLAIN the process of cytokinesis
DEFINE: life cycle REVIEW VOCABULARY -the sequence growth and development stages that an organism goes through during its life
MITOSIS IDENTIFY: two functions of mitosis in animals wound REPAIR 1- GROWTH of organism to adult size 2-
DESRCIBE: MITOSIS the stages of mitosis and the process of cytokinesis NAME OF PHASE prophase metaphase anaphase telophase cytokinesis DESCRIPTION (bulleted) -chromatin coils to form chromosome -chromosomes move to the center (MIDDLE) of the cell [spindle fibers] -centromeres spilt -sister chromatids pulled opposite sides (AWAY) -2 (TWO) new nuclei formed -double membrane begins to form btwn them -cell s cytoplasm divides/separates into 2 new identical cells [daughter cells]
MITOSIS LABEL: -the diagram of the stages of mitosis #13-16 -the structures pointed to using #17-20 METAPHASE ANAPHASE TELOPHASE PROPHASE sister chromatid G2 centromere spindle fibers centrioles
MITOSIS SUMMARIZE: The function of each structure in mitosis centromere- part of chromosome that spindle fiber attaches tube-like structure/shorten & pull microtubles- chromosome to opposite poles of cell pinch cytoplasm spindle fibers- attaches to and moves the chromosomes motor proteins- Help microtubules pull chromosomes to poles of cell
9.2 APP NTS [back] -TABLE PARTNER -COMPLETE back
TRUE/FALSE: T T MITOSIS 1- The nuclear membrane disintegrates during prophase. 2-Microtubles move chromatids to the poles of the cell during anaphase. F T 3-Chromosomes reach the poles of the cell during metaphase. 4-The cell s chromatin condenses into chromosomes during prophase. T 5-Chromosomes attach to spindle fibers & line up along the equator of the cell during F F metaphase. 6-the nucleus reappears during prophase. 7-Centrioles are pulled apart during anaphase. T T T 8-Chromatids are pulled apart during anaphase. 9-The shortest stage of mitosis is metaphase. telophase 10-The chromosomse decondense or unwind during telophase. telophase sister chromatids
COMPARE/CONTRAST: CYTOKINESIS Cytokinesis in plant AND animal cells STRUCTUREcell life plate exist -w/o -most proper of DNA [new doesn t as cell survive walls form between *accurately chromatin daughter passed cells] on -results in genetically identical daughter cells STRUCTUREmicrotubules appear as short -before division [PINCHING stringy structures into two new in nucleus daughter cells]
REVIEW MATCH the cell cycle stage with the correct definition. B C A F E D
-pack up remove EVERYTHING from desk -ROLL up sleeves
-chromatid DRAW the STRUCTURE
-chromatin DRAW the STRUCTURE
DRAW the STRUCTURE -sister chromatids
-chromosome DRAW the STRUCTURE
I-P-M-A-T-C LIST THE STAGES OF CELL CYCLE DIVISION IN ORDER -USE INITIALS ONLY
METAPHASE -shortest phase of mitosis -chromosomes move to the middle of the cell
PROPHASE -chromosomes visible, but not organized -starting to CONDENSE -centrioles appear -spindle fibers form
CYTOKINESIS -2 new identical daughter cells -cytoplasm divides
-chromatids pulled apart ANAPHASE
INTERPHASE -dark mass visible -spends most of life in this phase
TELOPHASE -two nuclei -double membrane begins to form
MITOSIS LIST THE STAGES OF MITOSIS -full name PROPHASE METAPHASE ANAPHASE TELOPHASE
-centrioles DRAW the STRUCTURE
-spindle fibers DRAW the STRUCTURE
-centromere DRAW the STRUCTURE
EXIT CIRCLE-level of understanding of today s objective Q s / clarifications- EXIT- NONE