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Biology LibreTexts

Quiz 2

  • Page ID
  • Match the agents/organisms/Kingdoms listed with the best description below.

    1. Disease-causing prion
    2. virus
    3. Primitive cyanobacteria
    4. Primitive aerobic respiring bacteria
    5. Kingdom Fungi
    6. Kingldom Plantae
    7. algae
    8. Kingdom Animalia


    1. Eukaryotic mitochondria evolved from __d_______
    2. Eukaryotic chloroplasts evolved from ___c_______
    3. Acellular microbe, lacks DNA and RNA=___a_______
    4. Eukaryote, usually unicellular, no tissues, photoautotroph, has chloroplasts, e.g. Spirogyra=___g_____
    5. Eukaryotes, photoautotroph, multicellular, has chloroplasts& tissues, e.g Elodea=__f_______
    6. Acellular, has either DNA or RNA surrounded by protein coat, e.g. Ebola pathogen=_b_____
    7. Eukaryotes, has chitin in cell wall, ergosterol in cell membranes, chemoheterotroph=__e___
    8. Eukaryote, multicellular, motile, ingestive nutrition, chemoheterotroph, lacks cell wall e.g Taenia solium (pork tapeworm)=__h_____
    9. A change in the genetic make-up of a population of organisms is called _biological evolution_____________
    10. An example of natural selection described in lecture is _overuse of antibiotics selecting for drug-resistant bacterial pathogens (e.g. “MRSA”)
    11. The Endosymbiotic Theory states that__eukaryotic mitochondria and chloroplasts evolved from primitive endosymbiotic bacteria
    12. In which Domain are organisms which can make peptidoglycan?_Domain Bacteria________
    13. In which Domain are organisms described as “extremophiles”?__Domain Archaea____________ What is a “thermophile”?__an organism which can live at very high temperatures____________________
    14. Name 3 microbial processes: a few examples…_pathogenesis, bioremediation, recycling, element cycling, fermentation, sewage processing, photosynthesis….
    15. Medical ecology: Which 3 factors contribute to infectious diseases? Host, microbe, environment_________
    16. What is the human microbiome?_all the microbes which live on and within a human
    17. For every human cell, how many microbes colonize a human?__10 microbes for every human cell (!)___________
    18. Viruses are described as “obligate intracellular parasites” which means_to replicate, viruses must be inside/within a host cell.