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Microbiology > Chapter Ten > Flashcards

Chapter Ten Flashcards

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Biology 101 flashcards
1
Q

Which of the following statements about archaea is false?

A

They evolved before bacteria.

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2
Q

Which of the following characterizes the Domain Bacteria?

A

Prokaryotic cells; ether linkages in phospholipids

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3
Q

What is the outstanding characteristic of the Kingdom Fungi?

A

Members absorb dissolved organic matter.

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4
Q

Bacteria and archaea are similar in which of the following?

A

Possessing prokaryotic cells

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5
Q

Biochemical tests are used to determine

A

Enzymatic activities

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6
Q

The arrangement of organisms into taxa

A

Shows degrees of relatedness between organisms.

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7
Q

Which of the following best defines a strain?

A

Genetically different cells within a clone

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8
Q

Which of the following is NOT based on nucleic-acid hybridization?

A

Western blotting

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9
Q

Fossil evidence indicates that prokaryotic cells first existed on the Earth

A

3.5 billion years ago.

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10
Q

In the scientific name Enterobacter aerogenes, Enterobacter is the

A

Genus

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11
Q

Which of the following is NOT a characteristic of members of the domain Archaea?

A

cause disease in humans

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12
Q

Which of the following is NOT included in Domain Eukarya?

A

a photosynthetic bacterium

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13
Q

Members of the Kingdom Fungi are __________.

A

either unicellular or multicellular

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14
Q

A unicellular microorganism has been isolated from an acidic sulfur-rich hot spring in Yellowstone Park. Its cell wall lacks peptidoglycan and has no nucleus or other membranous organelles. What is the most likely classification of this microorganism?

A

archaea

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15
Q

Which of the following is in the correct order?

A

domain, kingdom, phylum, class, order, family, genus, species

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16
Q

A key difference between classification methods and identification methods is that classification methods are designed to __________.

A

determine evolutionary relationships of organisms

17
Q

Which of the following is NOT true for the slide agglutination test?

A

The absence of agglutination indicates that the antibody reacted with the antigen.

18
Q

Which of the following is NOT true of the Western blot?

A

This technique identifies signature rRNA sequences of microbes.

19
Q

A number of skin infections caused by MRSA (methicillin-resistant Staphylococcus aureus) were detected among members of the wrestling teams of several local high schools. Which of the following methods might demonstrate whether these infections are caused by the same bacterial strain?

A

phage typing

20
Q

Which of the following is/are NOT used in DNA fingerprinting?

A

antibodies

21
Q

The sequencing of rRNA __________.

A

can yield information about evolutionary relatedness

22
Q

Which of the following could be a choice to track the source of hospital-acquired infections?

A

DNA fingerprinting

23
Q

Which of the following can be used to diagnose infections by detecting specific antibodies in a patient’s serum?

A

Western blotting and ELISA

24
Q

PCR __________.

A

useful as a step that may precede DNA fingerprinting or DNA sequencing

25
Q

DNA probes __________.

A

are DNA fragments

26
Q

Which of the following is NOT a step in identification of bacteria by DNA probes?

A

making the probe double-stranded

27
Q

Which of the following statements is NOT true of dichotomous keys?

A

They always show evolutionary relationships of organisms.

28
Q

Which statement is NOT true of cladograms?

A

They make dichotomous keys useless.

Microbiology (10 decks)

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