Bio 225 Chapter 10 Practice Questions
1. Taxonomy is:
A. The art or operation of preparing, stuffing, and mounting the skins of dead
animals for exhibition in a lifelike state.
B. The boredom that results from doing your taxes.
C. An identification scheme for pathogenic bacteria.
D. The science of the classification of organisms
E. A science that provides a means to identify organisms
F. Primarily D but also E
G. None of the above
2. What is a domain?
A. The most general taxon in the taxonomic hierarchy – includes kingdoms,
phyla, classes, etc.
B. The natural habitat of an organism
C. The specific epithet of an organism
D. A group of closely related organisms within the same species
3. Most domains consist of prokaryotic organisms.
A. True
B. False
4. Binomial nomenclature means:
A. A specific organism may go by more than one name (like Streptococcus
pneumonia is also known as pneumococcus)
B. Growth and death curves are always described by a logarithmic
progression
C. Organisms have two parts to their scientific name
D. Cladograms consist of a minimum of two organisms
5. A group of organisms that interbreeds within the group but not with organisms
outside the group is:
A. A species
B. A strain
C. A genus
D. A eukaryotic species
E. A bacterial strain
F. A bunch of hillbillies
6. Domain – kingdom – phylum – class – order – family – genus – species.
A. True
B. False
7. Which of the following is the best definition of a prokaryotic species?
A. A group of cells derived from the same parent cell – all of the offspring in
a single colony
B. A group of related genera
C. A group of cells that possess the same H and O antigens
D. A group of cells that can interbreed
E. A group of cells with similar characteristics
8. Which of the following best represents organisms that make up a strain of
prokaryotic cells?
A. A mixed culture
B. All of the colonies on a plate streaked for isolation from a mixed culture
C. All of the colonies on a plate streaked for isolation from a pure culture
D. All of the cells in a single colony
9. Which of the following characterizes the Domain Archaea?
A. Prokaryotic cells; no linkages in membrane lipids
B. Eukaryotic cells; ester linkages in membrane lipids
C. Prokaryotic cells; ether linkages in membrane lipids
D. Complex cellular structures
E. Multicellular
10. All of the following are false about the archaea except:
A. They are eukaryotes.
B. They have peptidoglycan in their cell walls.
C. They are never found in extreme environments.
D. Evidence suggests they evolved from eukaryotes.
E. Some produce methane from carbon dioxide and hydrogen.
11. Taxonomic classification schemes are useful for:
A. Rapid identification of pathogens
B. Showing morphological relatedness between organisms
C. Grouping organisms based on metabolic capabilities
D. Showing the evolutionary relatedness of organisms
12. Which of the following is used for classification and not for identification?
A. Biochemical tests
B. Serological tests
C. Flow cytometry
D. Phage typing
E. Ribosomal RNA sequencing
13. Biochemical tests indicate the presence of specific:
A. Cell wall components
B. Protein structure
C. Nucleic acid base composition
D. Metabolic pathways
14. Serological tests are based on:
A. The presence of identical DNA sequences in different organisms
B. The presence of identical antigens in all organisms
C. The ability to separate proteins by electrophoresis
D. The specificity of antigen binding by specific antibodies
1
2
3
4
5
6
7
8
9
10
11
12
13
14
F – You can use some techniques for identification
A
A – Bacteria and Archaea are prokaryotic, Eukarya is eukaryotic (duh, huh?)
C
D – A is too general and the definition given doesn’t hold for prokaryotes
A
E
D – this is the same as answer choice A in question 7
C – the membrane lipids are attached to glycerol, there has to be some type of linkage
(this is one of those eliminate all of the obviously wrong answers and what’s left is right
questions)
E
D
E
D – or enzymes in specific metabolic pathways
D