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5 Written questions

5 Matching questions

  1. Model Organisms
  2. Cells are small because...(2)
  3. Nucleus
  4. Cytoplasm
  5. Bacteria can be non-pathogenic, photoautotrophic, or pathogenic procaryotes
  1. a Enclosed in the nuclear envelope, contains most of the cells molecules of DNA that later condense into chromosomes as a cell prepares to divide.
  2. b Consists of cytosol--->jelly-like mixture
    Consists of organelles
  3. c Surface/volume ratio:volume increases faster than surface area.
    Nucleus(the brain): can only control certain amount of active cytoplasm.
  4. d ...
  5. e E. Coli., brewers yeast, Arabidopsis, fly, mouse, fish, worm, human
    Easy to grow

5 Multiple choice questions

  1. ...
  2. ...
  3. Contain digestive enzymes
  4. 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. Replication--->Transcription--->Translation

5 True/False questions

  1. Archaea can be extremophilic procaryotes; methanogens, halophiles, or hyperthermophilesNo 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

          

  2. Largest cell (length)Giant squid nerve cell (39ft)

          

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

          

  4. Evidence: mitochondria/chloroplasts resemble bacteriaConatin 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. ChloroplastsContain 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.