Microbiology: An Introduction (13th Edition)
Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 1, Problem 7MCQ

It has been said that bacteria are essential for the existence of life on Earth. Which of the following is the essential function performed by bacteria?

  1. a. control insect populations
  2. b. directly provide food for humans
  3. c. decompose organic material and recycle elements
  4. d. cause disease
  5. e. produce human hormones such as insulin
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Which of the following is TRUE regarding bacteria? a- Bacteria help produce vitamins in our digestive system b- Bacteria help clean our intestinal walls and help digest food c- Bacteria are involved in the production of a variety of foods we consume d- All of the above are true
was used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid Which one of the following does not apply to the bacterial glycocalyx? It is not responsible for virulency b .It allows the organism to resist drying C. It may allow an organism to resist phagocytosis d.It is composed of carbohydrates E. It is enclosed by the cell wall
Bacteria that can survive in extreme environments are called: a-Anaerobes b-Saprophytes c-Aerobes d-Archaebacteria
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