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5 Written questions

5 Matching questions

  1. Mitochondria
  2. Nucleus
  3. Largest cell (volume)
  4. Cell shape depends on function
  5. Procaryotes Vs. Eucaryotes
  1. a 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.
  2. b Ostritch egg
  3. c No nucleus
    DNA-one circular chromosome
    DNA not associated with histones
    No membrane enclosed organelles
    Divide by binary fission

    DNA enclosed in nucleus, multiple linear chromosomes DNA associated with histones,non-histone proteins
    Membrane enclosed organelles
    Require mechanisms
  4. d Enclosed in the nuclear envelope, contains most of the cells molecules of DNA that later condense into chromosomes as a cell prepares to divide.
  5. e ...

5 Multiple choice questions

  1. ...
  2. ...
  3. ...
  4. Consists of cytosol--->jelly-like mixture
    Consists of organelles
  5. Maintain 3-D structure of the cell
    Movement of organelles (microtubules)
    Generate contractile forces (actin filaments)
    Strengthen cell (intermediate filaments)

5 True/False questions

  1. Endoplasmic ReticulumConsists of cytosol--->jelly-like mixture
    Consists of organelles


  2. VesiclesTemporary storage organelles involved in transport by the processes of endocytosis/exocytosis


  3. LysosomesProtein synthesis


  4. Cells are small because...(2)Surface/volume ratio:volume increases faster than surface area.
    Nucleus(the brain): can only control certain amount of active cytoplasm.


  5. Symbiotic TheoryThe 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.