Micro Test 3- Branson CFCC (final)
sources of newborn initial microbiota - answer- Breathing
- Touching mother
- Breast feeding
a true pathogen - answer- infects healthy host
opportunistic pathogen - answerinfects immunocompromised host
Two types of reservoirs of disease - answer- Abiotic
- Biotic
Biotic: - answerAnimals (zoonotic)
Humans (dead end host)
Abiotic: - answerWater, air, food*
True or False:
Protaganism is the relationship our normal biota has with invading biota. - answerFalse normal biota are not easily removed by invading biota or microbes, it is actually hostile to other microbes.
True or False:
A bacteria with an I.D. (Infectious dose) of 10 is virulent than another with an I.D. of 10,000 - answerTrue: smaller number= high virulence factor
Infectious dose - answernumber of microbes required to cause an infection
5 stages of the progression of an infection - answer1. Portal of Entry
2. Adhesion
3. Overcoming Host Defenses
4. Causing Damage
5. Portal of Exit
Portal of Entry - answerMay be specific to the microbe
Adhesion virulence factors - answer♣ Glycalyx (capsule/slime layer) ♣ Fimbria
♣ Capsid spikes
♣ Anchor Proteins
Overcoming Host Defenses virulence factors - answer♣ Exoenzymes:
• Keratinasae
• Mucinase
• Collagenase
• Kinase (dissolves blood clots)
• Coagulase ( forms clots)
• Catalase ( destroys hydrogen peroxide) *basically a protein war
2 Types of toxins - answerexotoxins and endotoxins
Describe some enzymes or other adaptations that invaders use to survive or overcome host's defenses. - answer1. Keratinasae
2. Mucinase-digests the protective coating on mucous membranes
3. Collagenase
4. Kinase (dissolves blood clots)
5. Coagulase ( forms clots)
6. Catalase ( destroys hydrogen peroxide)
Contrast living and non-living reservoirs of pathogenic particles - answerliving:
Non-living:
Vertical transmission occurs between
A. father and son
B. G+ and G- bacterium
C. viroids
D. mother to child - answermother to child
True or False:
A pathogen MUST leave through the same portal it entered. - answerFalse
What structures do bacteria use to adhere to host tissues, and do they have an effect on virulence - answer♣ Glycalyx (capsule/slime layer)
♣ Fimbria
♣ Capsid spikes
♣ Anchor Proteins Yes
True or False:
Flies are examples of a biological vector - answerCan be!
*Biological: Microbe finishes some part of life cycle inside the host (vector)
sources of newborn initial microbiota - answer- Breathing
- Touching mother
- Breast feeding
a true pathogen - answer- infects healthy host
opportunistic pathogen - answerinfects immunocompromised host
Two types of reservoirs of disease - answer- Abiotic
- Biotic
Biotic: - answerAnimals (zoonotic)
Humans (dead end host)
Abiotic: - answerWater, air, food*
True or False:
Protaganism is the relationship our normal biota has with invading biota. - answerFalse normal biota are not easily removed by invading biota or microbes, it is actually hostile to other microbes.
True or False:
A bacteria with an I.D. (Infectious dose) of 10 is virulent than another with an I.D. of 10,000 - answerTrue: smaller number= high virulence factor
Infectious dose - answernumber of microbes required to cause an infection
5 stages of the progression of an infection - answer1. Portal of Entry
2. Adhesion
3. Overcoming Host Defenses
4. Causing Damage
5. Portal of Exit
Portal of Entry - answerMay be specific to the microbe
Adhesion virulence factors - answer♣ Glycalyx (capsule/slime layer) ♣ Fimbria
♣ Capsid spikes
♣ Anchor Proteins
Overcoming Host Defenses virulence factors - answer♣ Exoenzymes:
• Keratinasae
• Mucinase
• Collagenase
• Kinase (dissolves blood clots)
• Coagulase ( forms clots)
• Catalase ( destroys hydrogen peroxide) *basically a protein war
2 Types of toxins - answerexotoxins and endotoxins
Describe some enzymes or other adaptations that invaders use to survive or overcome host's defenses. - answer1. Keratinasae
2. Mucinase-digests the protective coating on mucous membranes
3. Collagenase
4. Kinase (dissolves blood clots)
5. Coagulase ( forms clots)
6. Catalase ( destroys hydrogen peroxide)
Contrast living and non-living reservoirs of pathogenic particles - answerliving:
Non-living:
Vertical transmission occurs between
A. father and son
B. G+ and G- bacterium
C. viroids
D. mother to child - answermother to child
True or False:
A pathogen MUST leave through the same portal it entered. - answerFalse
What structures do bacteria use to adhere to host tissues, and do they have an effect on virulence - answer♣ Glycalyx (capsule/slime layer)
♣ Fimbria
♣ Capsid spikes
♣ Anchor Proteins Yes
True or False:
Flies are examples of a biological vector - answerCan be!
*Biological: Microbe finishes some part of life cycle inside the host (vector)
