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REVIEW QUESTIONS

18 February, 2016 - 12:46
  1. The first forms of life on Earth were thought to be   .
  1. single-celled plants
  2. prokaryotes
  3. insects
  4. large animals such as dinosaurs
  1. The first organisms that oxygenated the atmosphere were   .
  1. cyanobacteria
  2. phototrophic organisms
  3. anaerobic organisms
  4. all of the above
  1. Which of the following consist of prokaryotic cells?
  1. bacteria and fungi
  2. archaea and fungi
  3. protists and animals
  4. bacteria and archaea
  1. Prokaryotes stain as Gram-positive or Gram- negative because of differences in the   .
  1. cell wall
  2. cytoplasm
  3. nucleus
  4. chromosome
  1. Prokaryotes that obtain their energy from chemical compounds are called   .
  1. phototrophs
  2. auxotrophs
  3. chemotrophs
  4. lithotrophs
  1. Bioremediation includes   .
  1. the use of prokaryotes that can fix nitrogen
  2. the use of prokaryotes to clean up pollutants
  3. the use of prokaryotes as natural fertilizers
  4. All of the above
  1. What event is thought to have contributed to the evolution of eukaryotes?
  1. global warming
  2. glaciation
  3. volcanic activity
  4. oxygenation of the atmosphere
  1. Mitochondria most likely evolved from   .
  1. a photosynthetic cyanobacterium
  2. cytoskeletal elements
  3. aerobic bacteria
  4. membrane proliferation
  1. Protists with the capabilities to absorb nutrients from dead organisms are called   .
  1. photoautotrophs
  2. autotrophs
  3. saprobes
  4. heterotrophs
  1. Which parasitic protist evades the host immune system by altering its surface proteins with each generation?
  1. Paramecium caudatum
  2. Trypanosoma brucei
  3. Plasmodium falciparum
  4. Phytophthora infestans
  1. Which polysaccharide is usually found in the cell walls of fungi?
  1. starch
  2. glycogen
  3. chitin
  4. cellulose
  1. What term describes the close association of a fungus with the root of a tree?
  1. a rhizoid
  2. a lichen
  3. a mycorrhiza
  4. an endophyte