The Cell Cycle. Mitosis Pg. 204- 210 in your book. Quick Facts About the Cell Cycle. The cell cycle is common to all living things It is a sequence of growth and division of a cell Two major periods of the cell cycle: I. Interphase II. Mitosis. Interphase.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Pg. 204- 210 in your book
-Growth Phase I (G1): Proteins are made, the cell grows and organelles increase in size and number
-Synthesis Phase (S)- DNA replicates; the purpose of this is so that the new cell can have the exact genetic copy
-Growth Phase (G2)- more proteins are made, centrioles used for cell division are copied and being to make spindles
-A continuous process that has four phases of the division of the nucleus
-This is the process where two daughter cells are formed, each containing a complete set of chromosomes.
1. Chromosomes appear because chromatin is condensing
-What is condensing?
Coiling and getting thicker
2. Centrioles move to the poles of the cell
3. Centrioles begin to form spindle
-these attach to the centromeres which hold together the sister chromatids
4. Nuclear membrane begins to disappear
5. Nucleolus disappears
-Also known as the equator
1. In animal cells- the cytoplasm and plasma membrane pinch in along the equator to create cleavage furrow
2. In plant cells- cell plate forms along the equator
-Plants have a rigid cell wall so the plasma membrane does not pinch in
-A cell plate is laid down across the equator and a cell membrane forms around each cell and new cells walls form to complete the separation.
cytokinesis begins with a series of vesicles that form at the equator of the cell, which subsequently join until the cell is divided in two.
cytokinesis starts with a cleavage furrow or indentation around the middle that eventually pinches in, dividing the cell in twoPlant Cell Cytokinesis vs. Animal Cell Cytokinesis
Prophase- Replicated chromosomes condense , Spindle fibers form
Metaphase- Replicated chromosomes align at center
Anaphase-Sister chromatids separateDaughter chromosomes move to poles
Telophase- New nuclear membranes formSpindle fibers disappear
Cytokinesis- Cell divides into two daughter cells
(yes, I know it is simple but it also helped me remember!)
-Just make sure to remember that Interphase comes before PMAT and Cytokinesis comes at the end!
-You are going to make a booklet of the cell cycle, making sure to include interphase and mitosis
-Interphase should include the 3 stages (draw and briefly describe events for G1, S and G2 phases)
-Draw, label and briefly describe the stages of mitosis (If you draw it, you must label it!)
-The last page of your booklet should show cytokinesis for both animal and plant cells
-Structures to be labeled:
Nucleolus, Centriole, Spindle Fibers, Daughter Cells, Chromatin, Centromere, Cleavage Furrow, Nucleus, Sister chromatids, Cell plate
Things to really pay attention to that you will be graded on!
-Making sure all requirements are met above!