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5 Written questions

5 Matching questions

  1. cell walls
  2. Matthias Schledeiden, Theodor Schwann, Virchow
  3. Endoplasmic Recticulum
  4. vacuoles
  5. kinesin
  1. a -offer protection and support
    -fungal cell walls are made of chitin
    -plant cell walls are made of cellulose
  2. b -internal membrane system creating channels and membrane bound organelles
    -consists of 2 regions: Smooth ER-embedded with enzymes and involved with lipid and carbohydrate systhesis
    -rough ER-studded with ribosomes and involved with protein
  3. c -in plants-store dissolved substances and can increase the cells surface area
    -in protists-contractile vacuoles are used to pump excess water
  4. d Schledeinden (botanist)
    Schwann (zoologist)
    Virchow (put theory together)
    -Proposed the first 2 statements of the cell theory in 1838-39
  5. e motor protein that moves vesicles to the cells periphery

5 Multiple choice questions

  1. -a dense network of protein fibers that supports the shape of the cell and anchors organelles
    -3 different kinds of protein fibers: microfilaments, microtubules, and intermediate filaments
  2. -arise from the golgi complex
    -contain enzymes that break down macromolecules
    -function in intracellular digestion of worn out cellular components and substances taken into cells
    -resulting material is recycled
  3. -Encases all living things
    -Its basic structure is represented by the fluid-mosaic model
    -Phospholipid bilayer with embedded proteins
    -In water, phospholipids spontaneously form a bilayer
    - Cell membranes contain zones called lipid rafts which are heavily enriched in cholesterol
  4. -arise from ER
    -contain 2 sets of enzymes, one in plants-converts fats to sugars
    -other set is in animals-detoxifies various harmful molecules
  5. -Is associated with proteins
    -During cell division, condenses into chromosomes
    -After cell division, relaxes into chromatin

5 True/False questions

  1. Cell Size-offer protection and support
    -fungal cell walls are made of chitin
    -plant cell walls are made of cellulose


  2. Eukaryotes-Appeared about 1.5 billion years ago
    -Include all cells alive today except bacteria and archaea
    -Are larger than proaryotic cells
    -Have a more complex archetecture
    -Possess a nucleus and a variety of organelles


  3. endosymbiotic theory-All organisms are composed of one or more cells
    -Cells are the smallest living things
    -Cells arise only by division of a preiviously existing cell


  4. Prokaryotes-Include bacteria and archaea
    -Over 5,000 species are recognized
    -3 main shapes: rod, spiral, and spherical
    -Lack nucleus and organelles


  5. Nucleus-Command center of the cell; directs all activities
    -Stores hereditary information