Cellular Biology by Robert Fiero https://padlet.com/robert_fiero/met1co27p615 Cell science information en-us 2016-09-20 14:46:07 UTC 2026-03-22 04:11:19 UTC hello@padlet.com Basic Organelles of Eukaryotic Cells robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/127649432 Organelle-part of a cell. Compartment of special function.                                    
Mitochondria                                     
Lysosomes (animal cells only)                                      
Nucleus
Vacuoles
Central water vacuole (plant cells only)
Centrioles (animal cells only)                          
Golgi Complex-makes vesicles
Cell Membrane                               
Cytoskeleton
Cell Wall (plants only)                   
Cytoplasm
Chloroplasts (plants only)            
Ribosomes                
Endoplasmic Recticulum (rough and smooth) 
]]> 2016-09-30 21:13:49 UTC https://padlet.com/robert_fiero/met1co27p615/wish/127649432 Chemical Compounds in Cells robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/127649559 Atoms/Elements make up Chemicals/Compounds
Organic (made of carbon and hydrogen atoms with other elements often) 
Inorganic Compounds (other chemicals not organic)
Carbohydrates-sugars, starches, and cellulose (fiber)
Proteins-made up of amino acids; enzymes (chemically active); structural (i.e microtubules, etc.)
Lipids-oils, fats, wax, and phospholipids (membranes of cells and organelles)
Nucleic Acids-DNA (double stranded main storage of genetic 
                         information) and RNA (single stranded copy of 
                         DNA used to make proteins).
]]> 2016-09-30 21:15:34 UTC https://padlet.com/robert_fiero/met1co27p615/wish/127649559 Basic Types of Cells robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/127650031 Prokaryotic-comes from the Greek πρό (pro) "before" and καρυόν (karyon) "nut or kernel". NO membrane defined organelles.  For example no nucleus in this type of cell.
This type of life can be divided into two domains: Archaea and Bacteria. Both simple and unicellular.

Eukaryotic- comes from the Greek 'eu' means "true"   καρυόν (karyon) "nut or kernel". An organism with a complex cell or cells, in which the genetic material is organized into a membrane-bound nucleus or nuclei. Has many membrane defined organelles. They are classification kingdoms of: animals, plants, and fungi, protists.]]> 2016-09-30 21:21:10 UTC https://padlet.com/robert_fiero/met1co27p615/wish/127650031 Cell Theory robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/127650065
  • All known living things are made up of cells.
  • The cell is structural & functional unit of all living things.
  • All cells come from pre-existing cells by division. (Spontaneous Generation does not occur).
  • Cells contains hereditary information which is passed from cell to cell during cell division.
  • All cells are basically the same in chemical composition.
  • All energy flow (metabolism & biochemistry) of life occurs within cells.
    • ]]>     2016-09-30 21:21:34 UTC https://padlet.com/robert_fiero/met1co27p615/wish/127650065     Movement of Materials In & Out of Cells robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/127650198 Diffusion-movement of materials spontaneously from an area of high concentration to an area of lower concentration.
    Osmosis-diffusion of water through a selectively permeable membrane.
     While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. It could be as simple as molecules moving freely such as osmosis or diffusion. You may also see proteins in the cell membrane that act as channels to help the movement along. And of course there is an in-between transport process where very small molecules are able to cross a semi-permeable membrane.
    Endocytosis - substances moving into a cell.
    Exocytosis - substances being exported out of a cell.
    Facilitated diffusion     - proteins are used to help move molecules more quickly.
    ]]>     2016-09-30 21:23:30 UTC https://padlet.com/robert_fiero/met1co27p615/wish/127650198     Cellular Biology History robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/129299808 Primary Contributers to Cellular Biology
    The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to small rooms which monks inhabited. However what Hooke actually saw was the dead cell walls of plant cells (cork).  he first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra and bacteria he called "animicules."
    In 1838, Theodor Schwann (animal cells) with help from Matthias Schleiden (plant cells) stated but the cell theory but promoted the idea of Free-cell formation (spontaneous generation of cells) (kind of crystalized into being) which was popular at the time. Rudolph Virchow then changed this idea into modern cell theory that pre-existing cells produce cells.
    As with the rapid growth of molecular biology in the mid-20th century, cell biology research exploded in the 1950’s. It became possible to maintain, grow, and manipulate cells outside of living organisms. The first continuous cell line to be so cultured was in 1951 by George Otto Gey.  It was also aided by development of sterile cell culture techniques; the prior advances in electron microscopy, and later advances such as development of transfection methods, discovery of green fluorescent protein in jellyfish, and discovery of small interfering RNA (siRNA), among others. ]]>     2016-10-08 20:34:38 UTC https://padlet.com/robert_fiero/met1co27p615/wish/129299808     robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/129303649 Animal Cell Video-by Crash Course]]> 2016-10-08 22:51:29 UTC https://padlet.com/robert_fiero/met1co27p615/wish/129303649 robert_fiero https://padlet.com/robert_fiero/met1co27p615/wish/129303671 Cell Organelles website]]> 2016-10-08 22:52:25 UTC https://padlet.com/robert_fiero/met1co27p615/wish/129303671