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PRESENTATION TASK Classroom Context: This performance assessment focuses on a high school science teacher, Mr. Swartz, who is preparing a unit on cells.
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PRESENTATION TASK Classroom Context: This performance assessment focuses on a high school science teacher, Mr. Swartz, who is preparing a unit on cells. Background: As part of the study on cells, Mr.. Swartz would like to present to his students a brief slide show presentation outlining the four stages of cell mitosis. He would like to have each slide in the presentation advance manually. Mr. Swartz has provided a link to the graphics for the four slides that can be downloaded by clicking on the links below. Available Files: cell1.gif (graphic image for slide #1) http://gemini.utb.edu/jbutler/6343/exam_images/cell1.gif cell2.gif (graphic image for slide #2) http://gemini.utb.edu/jbutler/6343/exam_images/cell2.gif cell3.gif (graphic image for slide #3) http://gemini.utb.edu/jbutler/6343/exam_images/cell3.gif cell4.gif (graphic image for slide #4) http://gemini.utb.edu/jbutler/6343/exam_images/cell4.gif
The Task: Mr. Swartz has asked the Master Technology Teacher for assistance in creating the presentation. Using your knowledge of presentation software, create a model slide show presentation to Mr. Swartz’s specifications. In creating this presentation, you should: • Create an introduction slide that provides the subject, date and teacher’s name. • Create slides 2 through 5 using the five files provided by Mr. Swartz. Each slide should • Contain a title, an appropriate graphic image and text provided displayed as a bulleted list. • Animate the entry of the text of slides 2 and 4 (the animations should occur • Automatically and not require a mouse or keyboard click). • Animate the entry of the graphics in slides 3 and 5 (the animations should occur automatically and not require a mouse or keyboard click).
(Slide # 3)Metaphase The spindle fibers attach themselves to the centromeres of the chromosomes The fibers align the chromosomes at the equatorial plate. (Slide # 4)Anaphase and Telophase The spindle fibers shorten and the centromere splits The chromosomes reach the poles of their respective spindles. Nuclear envelope reform before the chromosomes uncoil. The spindle fibers disintegrate. All photographs from http://library.thinkquest.org/C0118084/Gene/Chromosomal_Inheritance/StagesMitosis.htm (Slide # 1)Interphase DNA has replicated, but has not formed the condensed structure of chromosome. They remain as loosely coiled chromatin. Nuclear membrane still intact to protect the DNA molecules from undergoing mutation (Slide # 2)Prophase The DNA molecules progressively shorten and condense by coiling, to form chromosomes. The nuclear membrane and nucleolus are no longer visible The spindle apparatus has migrate to opposite poles of the cell.
Cell Mitosis Rigo Rivera June 21, 2011
Interphrase • DNA has replicated, but has not formed the condensed structure of chromosome. They remain as loosely coiled chromatin. • Nuclear membrane still intact to protect the DNA molecules from undergoing mutation
Prophase • The DNA molecules progressively shorten and condense by coiling, to form chromosomes. • The nuclear membrane and nucleolus are no longer visible • The spindle apparatus has migrate to opposite poles of the cell.
Metaphase • The spindle fibers attach themselves to the centromeres of the chromosomes The fibers align the chromosomes at the equatorial plate.
Anaphase and Telophase • The spindle fibers shorten and the centromere splits • The chromosomes reach the poles of their respective spindles. • Nuclear envelope reform before the chromosomes uncoil. • The spindle fibers disintegrate
