Microbiology with Diseases by Taxonomy - With Access
5th Edition
ISBN: 9780134578019
Author: BAUMAN
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 7CT
Microbiologists have announced the discovery of over 30 new species of bacteria that thrive between the teeth and gums of humans. The bacteria could not be grown in the researchers’ laboratories, nor were any of them ever observed via any kind of microscopy.
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Chapter 4 Solutions
Microbiology with Diseases by Taxonomy - With Access
Ch. 4 - Prob. 1MCCh. 4 - A nanometer is ________ than a micrometer. a. 10...Ch. 4 - Prob. 3MCCh. 4 - Curved glass lenses _________ light. a. refract b....Ch. 4 - Prob. 5MCCh. 4 - Prob. 6MCCh. 4 - Which of the following types of microscopes...Ch. 4 - Prob. 8MCCh. 4 - Prob. 9MCCh. 4 - Prob. 10MC
Ch. 4 - If an objective magnifies 40 and each binocular...Ch. 4 - The type of fixation developed by Koch for...Ch. 4 - Immersion oil ________ (increases/decreases) the...Ch. 4 - Prob. 4FIBCh. 4 - Prob. 5FIBCh. 4 - Prob. 1VICh. 4 - Label the microscope.Ch. 4 - Prob. 1SACh. 4 - Critique the following definition of magnification...Ch. 4 - Prob. 3SACh. 4 - Prob. 4SACh. 4 - Prob. 5SACh. 4 - Give three characteristics of a specific epithet.Ch. 4 - Prob. 7SACh. 4 - Prob. 8SACh. 4 - Prob. 1CTCh. 4 - Prob. 2CTCh. 4 - Prob. 3CTCh. 4 - Prob. 4CTCh. 4 - Prob. 5CTCh. 4 - In what ways are the Gram stain and the acid-fast...Ch. 4 - Microbiologists have announced the discovery of...Ch. 4 - Why is the genus name Coccus placed within...Ch. 4 - A clinician obtains a specimen of urine from a...Ch. 4 - Using the following terms, fill in the following...Ch. 4 - Prob. 1TMWCh. 4 - Prob. 2TMWCh. 4 - Prob. 3TMWCh. 4 - Prob. 4TMWCh. 4 - Prob. 1EDCS
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- Which of the following bacteria possesses a spherical shape?a) E. colib) Bacillus anthracisc) Spirilum minusd) Escherichia colie) Staphylococcus aureusarrow_forwardMicroorganisms have been described as the most chemically diverse, the most adaptable, and the most ubiquitous organisms on Earth. What other "most" descriptions could be added to this list?arrow_forwardAntibiotic resistant bacteria are commonly found in hospitals. Why do you think that is?arrow_forward
- Why does culture have no biological basis?arrow_forwardA microbiologist argued that there is no such thing as “normal” microbiota of the human body, since the population is dynamic and is constantly changing, depending on diet and external environment. What would be an argument against this microbiologist’s view?arrow_forwardIn dental offices, the instruments are cleaned in a supersonic bath, then sterilized using UV radiation. Specifically explain how UV light kills bacteria.arrow_forward
- Most healthy and some abnormal gut microbiomes that have a high diversity of taxonomic groups are resistant to manipulation by probiotics and other therapeutic treatments such a fecal transplantation. Explain why these microbiomes are more likely to be resistant to manipulation.arrow_forwardYou have a mixed culture of 2 different bacterial species. One of the species is Gram negative bacilli and the other species is Gram positive cocci. You have noticed that one species is killed by penicillin antibiotics (attacks peptidoglycan) while the other survives. Neither species has antibiotic resistance genes. How can you explain this result? Remember to make direct reference to each bacterial species in your responsearrow_forwardA bacterium has the following characteristics: I. It adheres to the human intestinal lining using a feature that protects it from phagocytes , bacteriophages, and dehydration. II. It can survive being boiled. III. It contains no plasmids and relatively little peptidoglycan. Which of the following characteristics allows this bacteria to survive in a human who is taking penicillin pills? A. gram-negative cell wall B. peptidoglycan in the cell wall C. lipopolysaccharides in the cytoplasm D. long polypeptides in the cell wallarrow_forward
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