Microbiology

Learn the toughest concepts covered in Microbiology with step-by-step video tutorials and practice problems by world-class tutors.

19. Innate Immunity

First-Line Defenses: Chemical Barriers

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1

concept

Chemical Barriers

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2

concept

Chemical Defenses: Sebum Prevents Microbial Growth as a Protective Layer

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3
Problem

The ____________ glands create sebum which makes the skin more __________ which decreases microbial growth.

4

concept

Chemical Defenses: Sweat Glands Prevent Microbial Growth by Perspiration

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Chemical Defenses: Earwax Prevents Microbial Growth by Controlling pH

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6
Problem

Lysozyme is effective at destroying bacteria pathogens because it does what?

7

concept

Chemical Defenses: Saliva Can Prevent Microbial Growth

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8

concept

Chemical Defenses: Gastric Juice Prevents Microbial Growth by Lowing pH

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9
Problem

Which of the following statements about the defensive roles of saliva and gastric juices are true?

10

concept

Antimicrobial Peptides

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11
Problem

Defensin antimicrobial peptides kill microbes by:

12
Problem

All of the following are chemical defenses against microbial infection except which of these answers?

13
Problem

What property of antimicrobial peptide allows them to disrupt bacterial cell surfaces?