* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Cell membrane Chromatin Nuclear membrane
Survey
Document related concepts
Tissue engineering wikipedia , lookup
Cytoplasmic streaming wikipedia , lookup
Extracellular matrix wikipedia , lookup
Biochemical switches in the cell cycle wikipedia , lookup
Cellular differentiation wikipedia , lookup
Signal transduction wikipedia , lookup
Cell culture wikipedia , lookup
Cell encapsulation wikipedia , lookup
Spindle checkpoint wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Cell growth wikipedia , lookup
Cell nucleus wikipedia , lookup
Cell membrane wikipedia , lookup
Endomembrane system wikipedia , lookup
Transcript
http://player.discoveryeducation.com/index.cfm?guidAssetId=9B385B50-541B-447A-89CF2016A3CFC094&blnFromSearch=1&productcode=US Goal: one cell creates two new identical cells 1. Interphase – period of rapid growth – all materials are doubling 2. Mitosis - nucleus of cell divides [4 stages] Prophase Metaphase Anaphase Telophase 3. Cytokinesis - cytoplasm divides 1. Growth – allows organism to reach maturity 2. Replace worn out cells- every cell dies at some point 3. Repair damaged cells – allows damaged areas of organisms to be fixed Cells that do not go through cell cycle: Muscle & Nerve Chromosome Nuclear membrane Cell membrane [Increasing] Cell membrane * Cell Membrane, nuclear membrane, cytoplasm, and all organelles double * DNA doubles * DNA long, thin threads = chromatin *Cell needs to double all materials in order to be able make two new cells Nuclear membrane Chromatin [Preparing] Centrioles *DNA shortens and coils- chromosomes appear *Centromeres appear [hold chromosomes together] *Spindle fibers appear *Centrioles appear [poles found in animal cells, will guide chromosome movement] * Nuclear membrane begins to disappear Centromere Nuclear membrane Chromosome Spindle fibers [Middle] *Chromosomes line up in center of cell and attach to spindle fibers * Spindle fibers attach to centrioles Centriole Centromere Chromosome Spindle fiber [Apart] Chromosome *Centrioles tug on spindle fibers pulling chromosomes apart * Centromeres are lost Centriole Spindle fiber [Two new] *Two new nuclear membranes appear creating two new identical nuclei *Spindle fibers and centrioles disappear Chromosome Nuclear membrane [cytoplasm divides] Cell membrane * Cytokinesis Chromosomes = cytoplasm divides How? * Animals- cell membrane pinches inward Cell Plate Nuclear membrane * Plants- Cell plate grows from center of cell outward Nuclear membrane * Two new cells identical to parent cell and each other * Each cell contains same number of chromosomes as parent cell Chromosome Interphase = 80% All Materials Double DNA duplicates and cell grows Nucleus Doubles Cell Growth Cytoplasm Divides Interphase Prophase Metaphase Anaphase Telophase Cytokinesis Daughter Cells I I Payed Money At The Car Dealership