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5 Written questions

5 Matching questions

  1. dynien
  2. Endoplasmic Recticulum
  3. peroxisomes
  4. centrioles
  5. cell walls
  1. a motor protein that moves vesicles to the cells interior
  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 -arise from ER
    -contain 2 sets of enzymes, one in plants-converts fats to sugars
    -other set is in animals-detoxifies various harmful molecules
  4. d -anchor and assmble microtubules
    -not found in plants or fungi
    -may have originated as symbiotic bacteria
  5. e -offer protection and support
    -fungal cell walls are made of chitin
    -plant cell walls are made of cellulose

5 Multiple choice questions

  1. -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
  2. -Command center of the cell; directs all activities
    -Stores hereditary information
  3. -a mixture of glycoproteins secreted by animal cells
    -helps coordinate the behavior of all cells in tissue
  4. -in plants-store dissolved substances and can increase the cells surface area
    -in protists-contractile vacuoles are used to pump excess water
  5. -all cell motion is tied to movement of microfilaments and microtubules
    -changes in shape of microfilaments: enables some cells to change shape quickly, allow some cells to crawl and animal cells to divide

5 True/False questions

  1. Cell Theory-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

          

  2. golgi complex-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. Prokaryotes-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. The Endomembrane System-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

          

  5. The Prokaryotic Membrane-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