Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 11, Problem 1CT
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Mycoplasmas are bacteria that lack cell walls. On the basis of this structural feature, which statement concerning mycoplasmas should be true?
They are gram-negative.
They are subject to lysis in hypotonic conditions.
They lack a cell membrane as well.
They should contain less cellulose than do bacteria that possess cell walls.
They possess typical prokaryotic flagella.
In the diagram below, identify the structures of a cyanobacterial cell based on the following descriptions:
a) Outer cellular covering which includes:
Mucilaginous layer – outermost layer covering the cell wall; protects the cell from harmful factors of the environment
Cell wall – found just below the mucilaginous layer; 2 or 3-layered, the inner layer lies in between the outer wall layer and plasma membrane; the outer layer is made of peptidoglycan
Innermost plasma membrane – selectively permeable membrane enclosing the cytoplasm
b) Cytoplasm – found below the plasma membrane; the protoplasm which contains structures of different shapes and functions. Lamellae, which contain pigments such as chlorophylls, carotenes, xanthophylls, phycoerythrin and phycocyanin, are located in the peripheral region of cytoplasm. Ribosomes may also be found scattered in the cytoplasm.
c) Nucleic material – the nucleoplasm that is centrally located in the cell and contains chromatin in the form…
Below is an image of bacterial cells.
1. What shape of bacterial cells is portrayed?
2. Are there any bacterial arrangements visible? If so, which
one(s)?
Chapter 11 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 11 - Prob. 1TMWCh. 11 - Why are taxonomic names and categories in our...Ch. 11 - Prob. 3TMWCh. 11 - Prob. 1EDCSCh. 11 - Why are bacteria all classified in the same domain...Ch. 11 - Modified True/False 1. ____ All prokaryotes...Ch. 11 - Prob. 2MTFCh. 11 - Modified True/False 3. __________ If you were to...Ch. 11 - Prob. 4MTFCh. 11 - Prob. 5MTF
Ch. 11 - Modified True/False 6. __________ Halophiles...Ch. 11 - Prob. 7MTFCh. 11 - Prob. 8MTFCh. 11 - Modified True/False 9. A giant bacterium that is...Ch. 11 - Prob. 10MTFCh. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - Prob. 3MCCh. 11 - Endospores _____. a. remain alive for decades b....Ch. 11 - Prob. 5MCCh. 11 - Prob. 6MCCh. 11 - Prob. 7MCCh. 11 - Prob. 8MCCh. 11 - Prob. 9MCCh. 11 - The presence of mycolic acid in the cell wall...Ch. 11 - Match the bacterium on the left with the term with...Ch. 11 - Whereas the first edition of Bergeys Manual relied...Ch. 11 - What are extremophiles? Describe two kinds, and...Ch. 11 - Name and describe three types of bacteria...Ch. 11 - Prob. 4SACh. 11 - Prob. 5SACh. 11 - A student was memorizing the arrangements of...Ch. 11 - Prob. 7SACh. 11 - Name and describe five distinct classes of phylum...Ch. 11 - Prob. 9SACh. 11 - Prob. 10SACh. 11 - Prob. 1VICh. 11 - Prob. 2VICh. 11 - A microbiology student described deeply branching...Ch. 11 - Prob. 2CTCh. 11 - Prob. 3CTCh. 11 - Prob. 4CTCh. 11 - Louis Pasteur said, The role of the infinitely...Ch. 11 - Prob. 6CTCh. 11 - A scientist who discovers a prokaryote living in a...Ch. 11 - Contrast the processes of nitrogen fixation and...Ch. 11 - Prob. 9CTCh. 11 - Using the following terms, fill in the following...
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