HUMAN BIOLOGY: CONCEPTS - 9780134312729
8th Edition
ISBN: 2819260095972
Author: Johnson
Publisher: PERUSALL
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Chapter 9, Problem 6TY
Which of the following is a benefit of resident bacteria?
a. Resident bacteria cause the stomach to be acidic.
b. Resident bacteria produce antiviral compounds that prevent viral infections.
c. Resident bacteria can out-compete harmful bacteria and lower the incidence of infection.
d. Resident bacteria digest cellulose within the human digestive tract.
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Students have asked these similar questions
Which of the following statements is incorrect?
a. Mucosal surfaces are better than skin surfaces at supporting colonization by commensal microorganisms.
b. The skin provides a larger surface area than mucosal surfaces for commensal microorganisms.
c. There are ten times as many bacteria residing in the intestinal tract than the number of cells in the human body.
d. It is common for commensal bacteria to live in symbiosis with their human hosts.
e. During gestation in mammals, a fetus does not have any commensal microorganisms on their skin or mucosal surfaces.
A rumen is a stomach...
A. That contains hard materials and serves as a muscular mill to break up food
B. That contains oxyntopeptic cells for the production of acid and pepsinogen (pepsin)
C. That houses anaerobic microbes to metabolize cellulose
D. That functions in the absorption of nutrients
E. None of the above
People who use proton pump inhibitors or antacids are more prone to infections of the gastrointestinal tract. Can you explain the observation considering what you have learned?
Chapter 9 Solutions
HUMAN BIOLOGY: CONCEPTS - 9780134312729
Ch. 9 - Prob. 1QCCh. 9 - Prob. 2QCCh. 9 - Define the term pathogen and give some examples.Ch. 9 - Prob. 2CRCh. 9 - Prob. 3CRCh. 9 - Prob. 4CRCh. 9 - Prob. 5CRCh. 9 - Describe in general terms the distinction between...Ch. 9 - Describe the concept of an antigen and how it...Ch. 9 - Prob. 8CR
Ch. 9 - Prob. 9CRCh. 9 - Prob. 10CRCh. 9 - Prob. 1TYCh. 9 - Prob. 2TYCh. 9 - Prob. 3TYCh. 9 - Prob. 4TYCh. 9 - Prob. 5TYCh. 9 -
6. Which of the following is a benefit of...Ch. 9 - Prob. 7TYCh. 9 -
8. The following are steps in phagocytosis: (1)...Ch. 9 - Prob. 9TYCh. 9 - Prob. 10TYCh. 9 - Prob. 11TYCh. 9 - Prob. 12TYCh. 9 - Which of the following increases the likelihood of...Ch. 9 - Which of the following does not belong with the...Ch. 9 - Which of the following statements about HIV is...Ch. 9 - Prob. 1AWKCh. 9 - Prob. 2AWKCh. 9 -
3. Everyone knows that bacteria can cause...Ch. 9 - Prob. 4AWKCh. 9 - Prob. 5AWKCh. 9 - Why is it that most people get the chicken pox...Ch. 9 - The immune system is supposed to defend us from...
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