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Microbiology - MB5

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60 Fragen
Jun 10, 2025

Frage 1

What prevents phagocytic activity?

Antwort

The capsule prevents phagocytic activity.

Frage 2

What is the capsule made up of?

Antwort

The capsule is made up of polysaccharides (sugar).

Frage 3

What reaction indicates the presence of an antigen?

Antwort

The positive quelling reaction indicates the presence of an antigen.

Frage 4

What allows bacteria to survive in unfavorable environments?

Antwort

Spores allow bacteria to survive in unfavorable environments.

Frage 5

What structure provides motility to bacteria?

Antwort

Flagella provide motility to bacteria.

Frage 6

What advantage do flagella give bacteria?

Antwort

Flagella give bacteria a survival advantage in host-parasite interaction.

Frage 7

What type of microscope can detect flagella?

Antwort

Phase contrast microscope can detect flagella.

Frage 8

Name another type of microscope that can detect flagella.

Antwort

Electron microscope can detect flagella.

Frage 9

What is a third type of microscope that can detect flagella?

Antwort

Darkfield microscope can detect flagella.

Frage 10

What is a monotrichous flagellum?

Antwort

A monotrichous flagellum is a single flagellum.

Frage 11

What is an amphitrichous flagellum?

Antwort

An amphitrichous flagellum is a single flagellum at both ends.

Frage 12

What characterizes a lophotrichous flagellum?

Antwort

A lophotrichous flagellum has a group of flagella at one or both sides.

Frage 13

What is a peritrichous flagellum?

Antwort

A peritrichous flagellum has a group of flagella all over the cell wall.

Frage 14

What is the function of pili?

Antwort

Pili are hair-like structures for attachment onto tissue surfaces.

Frage 15

What may pili serve as?

Antwort

Pili may serve as receptor sites for bacterial viruses.

Frage 16

What is considered the ultimate parasite in the body?

Antwort

Virus is considered the ultimate parasite in the body.

Frage 17

What is the role of the capsule in bacteria?

Antwort

The capsule prevents phagocytic activity.

Frage 18

What is the composition of the capsule?

Antwort

The capsule is made of polysaccharides.

Frage 19

What does a positive quelling reaction signify?

Antwort

It signifies the presence of an antigen.

Frage 20

How do spores help bacteria?

Antwort

Spores help bacteria survive in unfavorable environments.

Frage 21

What is the function of flagella?

Antwort

Flagella provide motility to bacteria.

Frage 22

What is the significance of motility in bacteria?

Antwort

Motility gives bacteria a survival advantage in host-parasite interactions.

Frage 23

Which microscope uses phase contrast?

Antwort

Phase contrast microscope uses phase contrast.

Frage 24

What type of microscope uses electron beams?

Antwort

Electron microscope uses electron beams.

Frage 25

What type of microscope uses darkfield illumination?

Antwort

Darkfield microscope uses darkfield illumination.

Frage 26

What is a characteristic of a monotrichous flagellum?

Antwort

A monotrichous flagellum has one single flagellum.

Frage 27

What does amphitrichous mean?

Antwort

Amphitrichous means having a single flagellum at both ends.

Frage 28

What does lophotrichous refer to?

Antwort

Lophotrichous refers to a group of flagella at one or both sides.

Frage 29

What does peritrichous mean?

Antwort

Peritrichous means having flagella all over the cell wall.

Frage 30

What is the purpose of pili in bacteria?

Antwort

Pili help in attachment to tissue surfaces.

Frage 31

What do pili serve as for viruses?

Antwort

Pili serve as receptor sites for viruses.

Frage 32

What is the ultimate parasite mentioned?

Antwort

The ultimate parasite mentioned is a virus.

Frage 33

What is the structural role of the capsule?

Antwort

The capsule provides structural protection against phagocytosis.

Frage 34

What type of reaction is the positive quelling reaction?

Antwort

It is an immunological reaction indicating antigen presence.

Frage 35

What do spores allow bacteria to do?

Antwort

Spores allow bacteria to endure harsh conditions.

Frage 36

What is the significance of flagella in bacteria?

Antwort

Flagella are significant for movement and survival.

Frage 37

What is a common feature of flagella?

Antwort

Flagella can extend from one end or both ends.

Frage 38

What microscope can be used to observe flagella?

Antwort

Phase contrast microscope can be used to observe flagella.

Frage 39

What is the function of a darkfield microscope?

Antwort

A darkfield microscope enhances contrast in unstained samples.

Frage 40

What is the role of a flagellum in bacteria?

Antwort

A flagellum aids in bacterial motility.

Frage 41

What does a group of flagella at one side indicate?

Antwort

It indicates a lophotrichous arrangement.

Frage 42

What is the role of pili in viral infections?

Antwort

Pili act as receptors for viruses.

Frage 43

What does the term 'capsule' refer to?

Antwort

The capsule refers to a protective layer around bacteria.

Frage 44

What are polysaccharides?

Antwort

Polysaccharides are sugars that make up the capsule.

Frage 45

What does the positive quelling reaction test for?

Antwort

It tests for the presence of specific antigens.

Frage 46

What is the survival mechanism of spores?

Antwort

Spores allow bacteria to withstand adverse conditions.

Frage 47

What is the significance of motility in host interactions?

Antwort

Motility is crucial for bacteria to interact with hosts.

Frage 48

What is the structure of a flagellum?

Antwort

A flagellum is a hair-like structure.

Frage 49

What is the function of a microscope in studying bacteria?

Antwort

A microscope helps visualize bacterial structures.

Frage 50

What does a peritrichous arrangement imply?

Antwort

It implies flagella are distributed all over the cell.

Frage 51

What is the role of the capsule in bacterial defense?

Antwort

The capsule protects bacteria from immune responses.

Frage 52

What do pili facilitate in bacterial cells?

Antwort

Pili facilitate adherence to surfaces.

Frage 53

What is the primary function of flagella?

Antwort

The primary function of flagella is movement.

Frage 54

What type of flagellar arrangement has multiple flagella on one side?

Antwort

Lophotrichous arrangement has multiple flagella on one side.

Frage 55

What is a key feature of amphitrichous flagella?

Antwort

Amphitrichous flagella have one flagellum at each end.

Frage 56

What is the significance of the capsule's composition?

Antwort

The composition affects its protective capabilities.

Frage 57

What is the role of the flagella in bacteria's survival?

Antwort

Flagella enhance survival by enabling movement.

Frage 58

What is the structure of pili?

Antwort

Pili are hair-like structures.

Frage 59

What is the relationship between viruses and pili?

Antwort

Viruses may use pili as entry points into bacterial cells.

Frage 60

What is the overall function of the capsule?

Antwort

The overall function of the capsule is to protect bacteria.

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