Micro Ch. 10 Exam Questions With Correct
Answers.
1) Which of the following statements about archaea is FALSE?
A) They are prokaryotes.
B) They lack peptidoglycan in their cell walls.
C) Some are thermoacidophiles; others are extreme halophiles.
D) They evolved before bacteria.
E) Some produ...
1) Which of the following statements about archaea is FALSE?
A) They are prokaryotes.
B) They lack peptidoglycan in their cell walls.
C) Some are thermoacidophiles; others are extreme halophiles.
D) They evolved before bacteria.
E) Some produce methane from carbon dioxide and hydrogen. - answer✔D) They evolved
before bacteria.
2) If two organisms have similar rRNA sequences, you can conclude that they
A) live in the same place.
B) evolved from a common ancestor.
C) will have different G-C ratios.
D) will both ferment lactose.
E) mated with each other. - answer✔B) evolved from a common ancestor.
3) Which of the following statements about members of the Kingdom Plantae is FALSE?
A) They are multicellular.
B) They are composed of eukaryotic cells.
C) They undergo photosynthesis.
D) They use organic carbon sources.
E) They synthesize organic molecules. - answer✔D) They use organic carbon sources.
4) Which of the following statements about the members of the Kingdom Animalia is FALSE?
A) They are multicellular.
B) They are composed of eukaryotic cells.
E) They are heterotrophs. - answer✔C) They undergo photosynthesis.
5) A genus can best be defined as
A) a taxon composed of families.
B) a taxon composed of one or more species and a classification level lying below family.
C) a taxon belonging to a species.
D) a taxon comprised of classes.
E) the most specific taxon. - answer✔B) a taxon composed of one or more species and a
classification level lying below family.
6) A bacterial species differs from a species of eukaryotic organisms in that a bacterial species
A) does not breed with other species.
B) has a limited geographical distribution.
C) can be distinguished from other bacterial species.
D) is a population of cells with similar characteristics.
E) breeds with its own species. - answer✔D) is a population of cells with similar
characteristics.
7) Which of the following is the best evidence for a three-domain system?
A) Nucleotide sequences in ribosomal RNA vary between all three domains.
B) There are three distinctly different sets of metabolic reactions.
C) There are three distinctly different Gram reactions.
D) Some bacteria live in extreme environments.
E) There are three distinctly different types of nuclei. - answer✔B) There are three distinctly
different sets of metabolic reactions.
8) A biochemical test, in the microbiology world, is used to determine
A) staining characteristics.
B) amino acid sequences of enzymes.
C) nucleic acid-base composition of DNA sequences.
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