Biology 40s - Quiz

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KaZuma_t3
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Biology 40s - Quiz
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2014-09-23 00:22:14
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Biology 40s Quiz
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Biology 40s - Quiz
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  1. What is the basic unit of all living organisms?
    the cell
  2. What are the 3 domains of life?
    • Domain Archaea
    • Domain Eubacteria
    • Domain Eukaryota
  3. Define Archaea (5)
    • discovered in 1970's by Carl Woese
    • salt-water and heat loving microbes
    • found in hydrothermal vents
    • anerobic
    • autotrophic and chemotrophic
  4. Define Eubacteria (2)
    • bacteria
    • prokaryotic cells
  5. Define Eukaryotic (2)
    • eukaryotic cells
    • 4/5 kingdoms have eukaryotic cells
    • - protists
    • - fungi
    • - plants
    • - animals
  6. Define classification
    to arrange into groups of categories
  7. Define taxonomy
    • the science of classifying and naming living organisms
    • Carl Linnaeus invented binomial nomenclature
  8. What is the Hierarchical classification (7)
    • kingdom
    • phylum
    • class
    • order
    • family
    • genus 
    • species
  9. Define the Dichotomous Key
    A step-by-step key to figuring out which species you are dealing with
  10. Identify and explain the 2 domains in which bacterial cells are found (4)
    • domain eubacteria - true bacteria
    • domain archaea - ancient bacteria that live in extreme conditions
  11. anerobic vs aerobic
    • aerobic - bacteria that need O2
    • anerobic - bacteria that live without O2
  12. 3 examples of bacteria that are beneficial and 3 that are harmful
    • e.coli in small intestine, helps digests food that can't be digested and releases vitamins
    • lactobacillus that ingests lactose in milk 
    • decompose dead matter in ecosystems

    • cyanobacteria causes damage and slime in waterways
    • cholera from contaminated water causes food poisoning
    • causes tuberculosis and pneumonia
  13. 3 shapes of bacteria
    • cocci (round) - form clusters
    • bacilli (rods) - form chains
    • spirilla (spiral) - single cells only
  14. define binary fission (4)
    • asexual reproduction
    • one cell forms 2 identical cells
    • lack genetic variability
    • bacteria reproduce at incredible rates
  15. define conjugation
    • sexual reproduction
    • a pilus is formed between male and female
    • genetic material is transferred via direct contact
  16. define protists (3)
    • neither plants, animals, or fungi
    • organisms are unicellular and eukaryotic
    • give rise to other kingdoms
  17. what are 3 types of protists
    • animal-like
    • plant-like
    • fungi-like
  18. define animal-like protists (2)
    • "protozoans" amoeba and paramecium
    • can cause amoebic dysentry: contaminated water causes diarrhea, stomach cramps and vomiting
  19. define plant-like protists (3)
    • euglena and green algae
    • autotrophic
    • have chloroplasts with chlorophyll
  20. define fungi-like protists (5)
    • slime moulds
    • similar to fungi
    • live in cool, dark, moist environments
    • unicellular
    • release spores
  21. what are symptoms of malaria
    fever, chills, nausea, flu-like illness, and in severe cases death and coma
  22. is there a vaccine for malaria and how do you prevent it
    • no vaccine
    • use mosquito netting and drugs
  23. explain what the 3 types of locomotion in k. protists with examples
    • cilia: small hair like structures that move together ex) paramecium
    • flagella: large whip like structure ex) euglena
    • pseudopia: false feet or cytoplasmic streaming that pull the cell forward ex) amoeba
  24. how can bacteria survive 32,000 years frozen
    • they form endospores
    • they form endospores when conditions are not favourable 

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