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5 Written questions

5 Matching questions

  1. vacuoles
  2. cell walls
  3. Matthias Schledeiden, Theodor Schwann, Virchow
  4. Endoplasmic Recticulum
  5. Nucleus
  1. a -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. b -in plants-store dissolved substances and can increase the cells surface area
    -in protists-contractile vacuoles are used to pump excess water
  3. c Schledeinden (botanist)
    Schwann (zoologist)
    Virchow (put theory together)
    -Proposed the first 2 statements of the cell theory in 1838-39
  4. d -offer protection and support
    -fungal cell walls are made of chitin
    -plant cell walls are made of cellulose
  5. e -Command center of the cell; directs all activities
    -Stores hereditary information

5 Multiple choice questions

  1. -proposes that mitochondria and chloroplasts arose by symbiosis from ancient bacteria
    -this theory is supported by a wealth of evidence
  2. -flattened stack of membranes that are scattered throughout the cytoplasm
    -depending on cell, number of golgi bodies range from a few to several hundred--referred to as the golgi complex
    -golgi complex collects, packages, modifies, and distributes molecules
  3. -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
  4. -found only in plants and algae
    -energy capturing centers
    - site of photosynthesis in plants and algae
    -like bacteria, they possess circular DNA and divide by simple fission
    -like mitochondria, they are surrounded by 2 membranes
    -inner membrane is more complex
  5. -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 True/False questions

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


  2. DNAmotor protein that moves vesicles to the cells interior


  3. 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


  4. The Prokaryotic Membrane-There are two major kinds of cells: prokaryotes and eukaryotes


  5. extracellular matrix-a mixture of glycoproteins secreted by animal cells
    -helps coordinate the behavior of all cells in tissue