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5 Written questions

5 Matching questions

  1. Eukaryotes
  2. kinesin
  3. The Prokaryotic Membrane
  4. cell walls
  5. Cell Size
  1. a -There are two major kinds of cells: prokaryotes and eukaryotes
  2. b -offer protection and support
    -fungal cell walls are made of chitin
    -plant cell walls are made of cellulose
  3. c -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
  4. d -Cells range in size from a few micrometers to several centimeters
    -Most cells are small because larger cells do not function efficiently
    -It's advantageous to have a large surface-to-volume ratio
    -As cell size increases, volume grows much faster than surface area
  5. e motor protein that moves vesicles to the cells periphery

5 Multiple choice questions

  1. -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
  2. -arise from ER
    -contain 2 sets of enzymes, one in plants-converts fats to sugars
    -other set is in animals-detoxifies various harmful molecules
  3. -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. -proposes that mitochondria and chloroplasts arose by symbiosis from ancient bacteria
    -this theory is supported by a wealth of evidence
  5. -Command center of the cell; directs all activities
    -Stores hereditary information

5 True/False questions

  1. cilla-Is associated with proteins
    -During cell division, condenses into chromosomes
    -After cell division, relaxes into chromatin

          

  2. cell movement-Cells range in size from a few micrometers to several centimeters
    -Most cells are small because larger cells do not function efficiently
    -It's advantageous to have a large surface-to-volume ratio
    -As cell size increases, volume grows much faster than surface area

          

  3. centrioles-offer protection and support
    -fungal cell walls are made of chitin
    -plant cell walls are made of cellulose

          

  4. flagellalong and few in number

          

  5. Matthias Schledeiden, Theodor Schwann, VirchowSchledeinden (botanist)
    Schwann (zoologist)
    Virchow (put theory together)
    -Proposed the first 2 statements of the cell theory in 1838-39