Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 4, Problem 19Q
Which of the following is not useful to determine whether a clinical isolate is a bacterium,
- a. its size under a light microscope
- b. whether it has a cell wall
- c. whether it can form protective structures under stress
- d. all of the above are reliable
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Students have asked these similar questions
Comparing the different methods for counting bacterial cells, which of the following is FALSE?
A. The serial dilution methods counts only viable cells.
B. The turbidity method indirectly measures the number of cells observing how much light goes through a broth sample
C. The turbidity method uses a spectrophotometer
D. The direct microscopic method counts only viable cells
E. The direct microscopic method counts both viable and non-viable cells
Which of the following is false about counting viable cells?
A. CFU(Colony forming unit) are counted instead of individuals cells
B. Only 30-300 CFUs are statistically valid
C. Colonies growing on the plate represent a fraction of the live cells in the original sample
D. You can determine the number of live cells in a broth culture
E. It is necessary to multiply the by CFUs to determine the number of viable cells in the original sample
The specimen for an electron microscope is always a. stained with dyes c. killed b. sliced into thin sections d. viewed directly
Chapter 4 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 4.1 - Relate bacterial, archaeal, and eukaryotic cells...Ch. 4.1 - List the types of eukaryotic microorganisms, and...Ch. 4.2 - Differentiate among the flagellar structures of...Ch. 4.2 - List similarities and differences between...Ch. 4.2 - Describe the main structural components of a...Ch. 4.2 - Diagram how the nucleus, endoplasmic reticulum,...Ch. 4.2 - Prob. 7AYPCh. 4.2 - Explain the importance of ribosomes, and...Ch. 4.2 - List and describe the three main fibers of the...Ch. 4.2 - Prob. 10AYP
Ch. 4.2 - Prob. 1NPCh. 4.3 - Prob. 11AYPCh. 4.3 - Prob. 12AYPCh. 4.3 - Differentiate among the terms heterotroph,...Ch. 4.3 - Prob. 14AYPCh. 4.3 - Prob. 15AYPCh. 4.3 - Q. Yeast infection is one common side effect of...Ch. 4.3 - Prob. 2MMCh. 4.4 - Prob. 16AYPCh. 4.4 - Prob. 17AYPCh. 4.4 - Explain why a cyst stage may be useful to a...Ch. 4.4 - Prob. 19AYPCh. 4.4 - Prob. 2NPCh. 4.5 - Prob. 20AYPCh. 4.5 - Summarize the stages of a typical helminth life...Ch. 4.5 - Prob. 3NPCh. 4.5 - Prob. 3MMCh. 4 - Mitochondria likely originated from a. archaea. b....Ch. 4 - Summarize the endosymbiotic theory and explain how...Ch. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Compare and contrast the structure and function of...Ch. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Considering the role of fungi in nature, speculate...Ch. 4 - Prob. 9QCh. 4 - Prob. 10QCh. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Do you suppose any of these eukaryotic microbes...Ch. 4 - Which of these groups causes the most casualties...Ch. 4 - Prob. 17QCh. 4 - Do you suspect that the fact that humans use...Ch. 4 - Which of the following is not useful to determine...Ch. 4 - Why were protozoa originally considered a single...Ch. 4 - Write a paragraph that would explain the...Ch. 4 - From chapter 2, figure 2.1. Discuss how the...
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- Why are staining methods used in microbiology? Choose all that apply A. Staining results can have medical implications for an infected B. To clearly see the internal structures of the bacteria C. The stains can be used to dinginuish between bacteria type D. It is easier to very small microscope.arrow_forwardThe broth culture of Bacillus subtilis showed growth even after extended heating in a waterbath, while Serratia marcescens did not. This is due to: a. Bacillus subtilis is Gram-positive, while Serratia marcescens is Gram-negative b. Bacillus subtilis is a spore former c. the pigment of Serratia marcescens absorbs more radiation than other cells d. Bacillus subtilis has enzymes that protect it from ozonearrow_forwardWhich of the following is an acellular microorganism lacking a nucleus?a. bacterium b. helminth. c. protozoan d. virusarrow_forward
- Bacteria may be Gram + or Gram - due to their difference in staining. This stain is significant to treating bacterial diseases because A. Some people are immune to one type of bacteria but not the other B. The types of antibiotics prescribed will be based in part on which type of bacteria is causing the infection. C. Gram - always cause disease, Gram positives don't D. You can eliminate a large group of bacteria by knowing if infection is caused by either a Gram + or a Gram - which makes it easier to treat. E. B and D are correctarrow_forwardThe colonies growing on the surface of solid media represent: Select one: a. A group of different bacteria b. A single bacterium c. A single cell d. Many cells of the same bacterium e. Can not tellarrow_forwardList the fields of microbiology both basics and applied that deal with the following and explain each why these are part of fields of microbiology: a. Metabolism b. Enzymologyc. Nucleic Acid and Protein Synthesis d. Microorganisms in the Natural Environment e. Nucrobial Classification f. Microbial Cell Structurearrow_forward
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