19. Innate Immunity
First-Line Defenses: Chemical Barriers
Practice this topic
- Multiple Choice
The ____________ glands create sebum which makes the skin more __________ which decreases microbial growth.
- Multiple Choice
Lysozyme is effective at destroying bacteria pathogens because it does what?
- Multiple Choice
Which of the following statements about the defensive roles of saliva and gastric juices are true?
- Multiple Choice
Defensin antimicrobial peptides kill microbes by:
- Open Question
Identify at least one physical factor and one chemical factor that prevent microbes from entering the body through each of the following:
a. urinary system
b. genital system
- Open Question
Helicobacter pylori uses the enzyme urease to counteract a chemical defense in the human organ in which it lives. This chemical defense is
a. lysozyme.
b. hydrochloric acid.
c. superoxide radicals.
d. sebum.
e. complement.
- Open Question
Which of the following is a chemical defense found in tears? Select all that apply.
a. Water
b. Lysozyme
c. Antimicrobial peptides
d. Neutrophils