Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Endomembrane system wikipedia , lookup
Cell growth wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cytokinesis wikipedia , lookup
Cell nucleus wikipedia , lookup
Cell encapsulation wikipedia , lookup
Cellular differentiation wikipedia , lookup
Cell culture wikipedia , lookup
Tissue engineering wikipedia , lookup
https://www.youtube.com/watch?v=URUJD5NEXC8&feature=player_embedded Have a nucleus Organelle: STRUCTURES inside the cell; “little organs” https://www.youtube.com/watch?v=URUJD5NEXC8&feature=player_embedded Cytoplasm: Gel-like material inside cells Cell Membrane: “GATE KEEPER”— Controls what goes in and out Clip NUCLEUS: Directs all cell activities With the electron microscope NUCLEOLUS: Helps to make protein; Found inside nucleus CHROMATIN (aka: DNA): Found in nucleus; Contains genes or instructions for cell’s activities Clip Under the electron microscope: ENDOPLASMIC RETICULUM: Pathway for moving materials through cell (the “express-way”); usually close to the nucleus RIBOSOMES: Make protein! Under the electron microscope: Clip A simple diagram Under the electron MITOCHONDRIA: Releases energy in the cell; the “power house” (generator) Clip Under the electron microscope: CHLOROPLAST: Found in plants ONLY! Converts sunlight into cell energy Under the microscope CELL WALL: Found in plants only! Outer structure; made of cellulose Under the microscope VACUOLES: Store water, food, and waste products. Usually larger in plants! Under the microscope GOLGI BODIES: Nicknamed “UPS”— Packages & secrete substances made inside the cell Under the microscope LYSOSOMES: Digests cell wastes “garbage disposal” Clip What are the two parts plant cells have that animal cells do not have? • Cell Walls • Chloroplasts Clip Prokaryotic vs. Eukaryotic Prokaryotic Cells: NO NUCLEUS Eukaryotic Cells: have a TRUE NUCLEUS Example: Bacteria Example: all cells in your body What is the difference between a single cell and cells working together? Single Cells do everything by themselves; Cells in tissues and organs divide up the work! In many-celled organisms, cells work together to accomplish their work: TISSUES: Cells look ALIKE, perform the same function. Examples: MUSCLE TISSUE, NERVE TISSUE ORGANS: A structure made up of different kinds of TISSUES that all work together to perform the same JOB. Examples: HEART, BRAIN, LUNGS SIZES AND SHAPES OF CELLS Cells have different sizes and shapes, based on their JOB Some can be very SMALL and some can be very BIG • • • • • • • • • • Cell: Example: Muscle cell The smallest unit that can perform life functions Tissue Example: Muscle tissue similar cells grouped together to do one job Organ Example: heart Two or more types of tissues that work together Organ system Example: circulatory system group of organs that perform a function Organism Example: human being a living thing The Chain of Life and Levels of Organization It all fits together! Cell Structures by Brainpop