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5 Written questions

5 Matching questions

  1. Cell shape depends on function
  2. Largest cell (volume)
  3. Cells are small because...(2)
  4. Cytoskeleton
  5. Mitochondria
  1. a ...
  2. b Ostritch egg
  3. c Maintain 3-D structure of the cell
    Movement of organelles (microtubules)
    Generate contractile forces (actin filaments)
    Strengthen cell (intermediate filaments)
  4. d Surface/volume ratio:volume increases faster than surface area.
    Nucleus(the brain): can only control certain amount of active cytoplasm.
  5. e Conatin their own DNA and reproduce by dividing in two.
    Thought to derive from bacteria that were engulfed by some ancestor of present-day eucaryotic cells, creating a symbiotic relationship.
    Harness energy from oxidation of food molecules to produce ATP.
    Consumes oxygen and releases carbon called this process is called cellular respiration.

5 Multiple choice questions

  1. ...
  2. The ancestral eucaryotic cell was a predator that fed by capturing other cells. Such a way of life requires a large size, a flexible membrane, and a cytoskeleton to help the cell move and eat. The nuclear compartment may have evolved to keep the DNA segregated from this physical and chemical hurly-burly, so as to allow more delicate and complex control of the way the cell reads out its genetic information.
  3. Temporary storage organelles involved in transport by the processes of endocytosis/exocytosis
  4. Giant squid nerve cell (39ft)
  5. Contain digestive enzymes

5 True/False questions

  1. Model OrganismsE. Coli., brewers yeast, Arabidopsis, fly, mouse, fish, worm, human
    Easy to grow

          

  2. NucleusEnclosed in the nuclear envelope, contains most of the cells molecules of DNA that later condense into chromosomes as a cell prepares to divide.

          

  3. Evidence: mitochondria/chloroplasts resemble bacteriaSize
    Single circular DNA molecule
    70 S. ribosome
    Reproduce autonomously
    Have own DNA and machinery

          

  4. Archaea can be extremophilic procaryotes; methanogens, halophiles, or hyperthermophiles...

          

  5. Golgi ApparatusContain own DNAand reproduce by dividing in two.
    Thought to derive from bacteria that were engulfed by some ancestor of present-day eucaryotic cells, creating a symbiotic relationship.
    Contain chlorophyll/enzymes involved in photosynthesis to generate sugar and oxygen.
    Generate food and oxygen for mitochondria to use.

          

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