General Microbiology Study Guide 1
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1. Microorganisms are best defined as organisms that: are too small to be seen with the
unaided eye.
2. Which of the following are not considered microorganisms?: Mosquitoes
3. Helminths are: parasitic worms.
4. Among these types of microorganisms, the __________blank are noncellular.: -
viruses
5. Which of the following does not indicate microbe involvement in energy and
nutrient flow?: Thermal hot springs warmed by heat from earth's interior
6. The microorganisms that recycle nutrients by breaking down dead matter
and wastes are called: decomposers
7. The majority of oxygen in earth's atmosphere is a product of photosynthesis
by: microorganisms.
8. The three cell types discussed, eukaryotes, archaea, and bacteria, all derived
from: a common ancestral cell.
9. Which of the following is a traditional human use of microorganisms?: Baking
bread
10. Using microbes to detoxify a site contaminated with heavy metals is an
example of: bioremediation.
11. Disease-causing microorganisms are called: pathogens.
12. The number one worldwide infectious diseases are: respiratory diseases.
13. In which way are bacteria and eukaryotes the same?: Possess a cell membrane
14. In which way are archaea and eukaryotes the same?: Have similar ssu rRNA sequences
15. Which of the following is a unique characteristic of viruses that distinguishes
them from the other major groups of microorganisms?: Lack cell structure
16. Which group of microorganisms is composed only of hereditary material
wrapped in a protein covering?: Viruses
17. Eukaryotic cells are larger than bacterial or archaeal cells; all cells are larger
than macromolecules. Where do viruses fit on this scale?: Viruses are smaller than bacterial
or archaeal cells, but larger than macromolecules.
18. In general, eukaryotic cells are about __________blank times larger than bac-
terial or archaeal cells.: 10
19. Archaeal cells are about __________blank bacterial cells.: the same size as
, General Microbiology Study Guide 1
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20. Which of the following is NOT a recent discovery that has had a huge impact
on the understanding of microbiology?: All are significant discoveries.
21. The sum total of all the microbes in a certain environment is termed the: mi-
crobiome.
22. Which of the following is not a process in the scientific method?: Belief in a
preconceived idea
23. Sterile is best described as: absence of any life forms and viral particles.
24. Taxonomy does not involve: a common name.
25. Which of the following is a taxon that contains all the other taxa listed?: King-
dom
26. The smallest and most significant taxon is a: species.
27. Select the correct descending taxonomic hierarchy (left to right).: Family, genus,
species
28. A mnemonic for remembering the taxonomic levels from Domain to Species
is "Dear King Phillip Came Over for Good Soup." The word "came" here is a
reminder of the taxonomic level of: class.
29. Which of the following is a scientific name?: Streptococcus pyogenes
30. When assigning a scientific name to an organism,: both genus and species names are
italicized or underlined.
31. Which scientific name is written correctly?: Staphylococcus aureus
32. A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding
from the Last Common Ancestor would show Archaea: branching off the Domain Eukarya.
33. Analysis of the small subunit rRNAs from all organisms in the three current
domains suggests that: all modern and extinct organisms on earth arose from a common ancestor.
34. The study of evolutionary relationships among organisms is called: phylogeny.
35. A scientist studying the sequence of nucleotides in the rRNA of a bacterial
species is working on: determining evolutionary relatedness.
36. Trees of life that illustrate the phylogenetic relationships of all organisms
were traditionally based on __________blank; newer methods for determining
phylogeny rely on __________blank.: morphology; nucleic acid sequences
Study online at https://quizlet.com/_iptfc8
1. Microorganisms are best defined as organisms that: are too small to be seen with the
unaided eye.
2. Which of the following are not considered microorganisms?: Mosquitoes
3. Helminths are: parasitic worms.
4. Among these types of microorganisms, the __________blank are noncellular.: -
viruses
5. Which of the following does not indicate microbe involvement in energy and
nutrient flow?: Thermal hot springs warmed by heat from earth's interior
6. The microorganisms that recycle nutrients by breaking down dead matter
and wastes are called: decomposers
7. The majority of oxygen in earth's atmosphere is a product of photosynthesis
by: microorganisms.
8. The three cell types discussed, eukaryotes, archaea, and bacteria, all derived
from: a common ancestral cell.
9. Which of the following is a traditional human use of microorganisms?: Baking
bread
10. Using microbes to detoxify a site contaminated with heavy metals is an
example of: bioremediation.
11. Disease-causing microorganisms are called: pathogens.
12. The number one worldwide infectious diseases are: respiratory diseases.
13. In which way are bacteria and eukaryotes the same?: Possess a cell membrane
14. In which way are archaea and eukaryotes the same?: Have similar ssu rRNA sequences
15. Which of the following is a unique characteristic of viruses that distinguishes
them from the other major groups of microorganisms?: Lack cell structure
16. Which group of microorganisms is composed only of hereditary material
wrapped in a protein covering?: Viruses
17. Eukaryotic cells are larger than bacterial or archaeal cells; all cells are larger
than macromolecules. Where do viruses fit on this scale?: Viruses are smaller than bacterial
or archaeal cells, but larger than macromolecules.
18. In general, eukaryotic cells are about __________blank times larger than bac-
terial or archaeal cells.: 10
19. Archaeal cells are about __________blank bacterial cells.: the same size as
, General Microbiology Study Guide 1
Study online at https://quizlet.com/_iptfc8
20. Which of the following is NOT a recent discovery that has had a huge impact
on the understanding of microbiology?: All are significant discoveries.
21. The sum total of all the microbes in a certain environment is termed the: mi-
crobiome.
22. Which of the following is not a process in the scientific method?: Belief in a
preconceived idea
23. Sterile is best described as: absence of any life forms and viral particles.
24. Taxonomy does not involve: a common name.
25. Which of the following is a taxon that contains all the other taxa listed?: King-
dom
26. The smallest and most significant taxon is a: species.
27. Select the correct descending taxonomic hierarchy (left to right).: Family, genus,
species
28. A mnemonic for remembering the taxonomic levels from Domain to Species
is "Dear King Phillip Came Over for Good Soup." The word "came" here is a
reminder of the taxonomic level of: class.
29. Which of the following is a scientific name?: Streptococcus pyogenes
30. When assigning a scientific name to an organism,: both genus and species names are
italicized or underlined.
31. Which scientific name is written correctly?: Staphylococcus aureus
32. A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding
from the Last Common Ancestor would show Archaea: branching off the Domain Eukarya.
33. Analysis of the small subunit rRNAs from all organisms in the three current
domains suggests that: all modern and extinct organisms on earth arose from a common ancestor.
34. The study of evolutionary relationships among organisms is called: phylogeny.
35. A scientist studying the sequence of nucleotides in the rRNA of a bacterial
species is working on: determining evolutionary relatedness.
36. Trees of life that illustrate the phylogenetic relationships of all organisms
were traditionally based on __________blank; newer methods for determining
phylogeny rely on __________blank.: morphology; nucleic acid sequences
