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5 Written questions

5 Matching questions

  1. Mitochondria
  2. Procaryotes Vs. Eucaryotes
  3. Cytoplasm
  4. Peroxisomes
  5. Model Organisms
  1. a Consists of cytosol--->jelly-like mixture
    Consists of organelles
  2. b 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.
  3. c Facilitate the chemical RXN involving hydrogen peroxide
    -can generate/degrade hydrogen peroxide
  4. d 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
  5. e E. Coli., brewers yeast, Arabidopsis, fly, mouse, fish, worm, human
    Easy to grow

5 Multiple choice questions

  1. Surface/volume ratio:volume increases faster than surface area.
    Nucleus(the brain): can only control certain amount of active cytoplasm.
  2. Contain 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.
  3. Giant squid nerve cell (39ft)
  4. Temporary storage organelles involved in transport by the processes of endocytosis/exocytosis
  5. 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.

5 True/False questions

  1. 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.

          

  2. Endoplasmic ReticulumIrregular maze of interconnected spaces enclosed by a membrane that transports material through-out the cell
    -Smooth ER:synthesis of lipids, carbs., steroids
    -Rough ER: protein synthesis through ribosomes

          

  3. LysosomesProtein synthesis

          

  4. All organisms carry out gene expression:
    -flow of genetic info.
    -allows for growth/processes
    ...

          

  5. Largest cell (volume)Ostritch egg

          

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