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Microbiology-Lecture > Exam #2 > Flashcards

Exam #2 Flashcards

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Biology 101 flashcards
0
Q

match function to appropriate suture:

movement

A

flagellum

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1
Q

match function to appropriate structure:

attachment

A

fimbriae

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2
Q

T or F: spirochete move by whip-like flagella

A

false

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3
Q

syphillis is caused by a spirochete called

A

treponema pallidum

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4
Q

glycocalyx is made of

A

carbohydrate

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5
Q

Endotoxin is a chemic which is toxic for humans. The chemical is:

A

Lipopolysaccharide & LPS

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6
Q

Bacterial cells are resistant to hypotonic conditions because they:

A

Contain a cell wall composed of peptidoglycan

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7
Q

Which of the following are true about archaebacteria:

A

They include microbes that live in hot acidic environments.
They include microbes that reduce carbon to methane gas.
They include microbes that live in extremely salty environments.

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8
Q

Halo phones grow in conditions of high:

A

Salt

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9
Q

Bacterial spores are resistant to:

A

Boiling & Freezing

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10
Q

How long does it take for a spore to germinate into a bacterial cell?

A

1 1/2 hours

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11
Q

Which of the following prokaryote suture act as virulence factors?

A

Fimbrae & Glycocalyx

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12
Q

The genus Mycobacteria has the following characteristic:

A

Contains mycolic acid in its cell wall

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13
Q

T or F: The antibiotics which target the 70 S ribosome can damage human cells

A

True

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14
Q

T or F: Some inclusions found in bacterial cells store glucose in the form of glycogen

A

True

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15
Q

T of F: The antibiotics which target the 70S ribosome can damage human cells

A

True

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16
Q

T or F: some inclusions found in bacteria cells store glucose in the form of glycogen

A

True

17
Q

Lichen may be a symbiotic relationship between a Cyanobacteria and

A

Fungi

18
Q

This organism is considered an obligate intracellular bacterium

A

Rickettsias

19
Q

This organism will infect endothelial cells of small blood vessel & causes Rocky Mountain Spotted fever

A

Rickettsia

20
Q

Portion ‘b’ has the following characteristics

A

Does not interact with water molecules, hydrophobic

21
Q

If a chemical substance can interact with water, it is called

A

Hydrophilic

22
Q

Which of the following mechanisms are used by prokaryotes to transport substances across the cell membrane

A

Active transport
Facilitated diffusion
Simple diffusion

23
Q

Plasma membranes are not a good target for antimicrobials because

A

Bacterial plasma membranes are too much like human plasma membranes; hence, human plasma membranes would be damaged during treatment

24
Q

The number of nucleotide base pairs which make up a typical bacterial chromosome is

A

4 million

25
Q

T or F: Some fungi exist in a yeast form. Some fungi exist in a mild form. Some fungi can switch from yeast to mold and back again.

A

True

26
Q

T of F: fungi are great recyclers. Every naturally occurring organic material on the earth can be attacked by some type of fungi

A

True

27
Q

Symbiotic relationship between fungi & algae

A

Lichen

28
Q

Symbiotic relationship between fungi & plant roots

A

Mycorrhizae

29
Q

Regarding nutritional needs, algae are classified as

A

Photoautotrophs

30
Q

“Sick building syndrome” is caused by a

A

Fungi

31
Q

A protozoan is a heterotroph. This means that these organisms live off of organic matter

A

True

32
Q

Garda lambkins causes ________. It belongs to the kingdom _____, the subkingdom called ______ & the subgroup called _______.

A

Gastrointestinal disease; Protista; protozoan; flagellate

33
Q

T or F: Fungi are responsible for damaging 40% of the fruit crops every year

A

True

34
Q

If a fungus can switch from yeast to mold, it is called

A

Dimorphic

35
Q

A chain of fungal cells is called a

A

Hypha

36
Q

T or F: Eutrophication is defined as the nutrient-enhancement of a body of water. This is primarily due to the run off of fertilizers and the dumping of sewage into water ways. The consequence is algal blooms.

A

True

37
Q

Giardiasis begins with the ________, which then forms a _________ which attaches via a suction cup to the intestinal wall.

A

Ingestion of a cyst; trophozoite

38
Q

Carrageenan is an emulsifying agent against used for making various food products as well as some sex lubricants. Carageenan is produced by

A

Red algae

39
Q

T or F: a trophozoite is a form of a protozoan which contains a tough, thick cuticle which allows survival under adverse conditions

A

False

40
Q

T or F: coral is a symbiotic between algae & a polyp

A

True

Microbiology-Lecture (7 decks)

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