M6_L2_Cell_Division_Gizmo_Lab_2020 | Biology 201 M6_L2_Cell_Division_Gizmo_Lab_100% Pass

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M6_L2_Cell_Division_Gizmo_Lab_2020 Vocabulary: cell division, centriole, centromere, chromatid, chromatin, chromosome, cytokinesis, DNA, interphase, mitosis Prior Knowledge Questions (Do these BEF... ORE using the Gizmo.) Cells reproduce by splitting in half, a process called cell division. What do cells need to do between divisions to make sure that they don’t just get smaller and smaller? Make sure the cell grows to full size. The genetic information of a cell is carried in its DNA (short for deoxyribonucleic acid). What do cells need to do between divisions to make sure that a full set of DNA gets passed on to each daughter cell? The DNA must be copied so there is a full set of DNA for the daughter cell. Gizmo Warm-up On the SIMULATION pane of the Cell Division Gizmo™, check that the Cycle Length is set to 12 hours. Click Play ( ), observe until the maximum number of cells is shown, and then click Pause ( ). Cells that are in the process of dividing are said to be in mitosis or cytokinesis. Cells that are not dividing are in interphase. Check the Magnify box and move the cursor over the cells. Select the BAR CHART tab, and turn on Show numerical values. How many cells are in the interphase stage of their life cycle? 80 Based on these two observations, would you say that a cell spends most of its life cycle in interphase or in mitosis/cytokinesis? Definitely interphase since they need to get set up to multiply Get the Gizmo ready: Activity A: ● Click Reset ( ). Phases of the cell ● Select the DESCRIPTION tab. cycle ● Click on the right arrow once so that Interphase is shown. Question: What are the stages of the cell cycle? Observe: Click Play and hold the cursor over the cell. Observe the cell as it divides several times. (This happens quickly!) Summarize: On the DESCRIPTION pane, read about each phase in the cell cycle. In the spaces below, sketch (or paste a drawing/picture of) the cell in each phase and summarize what occurs in your own words. Phase Sketch Summary Interphase It is at its resting state and making sure it has all the energy and nutrients. It gets all the pieces ready for the next phase which is why it takes the longest. Prophase The DNA gets duplicated and preparing cell of divison- - [Show More]

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