PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 2818440045677
Author: WILLEY
Publisher: MCG
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Chapter 21.3, Problem 3CC
Design an experiment designed to explore the role of sterols in mycoplasma structure and/or physiology.
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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…
Pathways include the complete glycolytic pathway, the citric acid cycle and Electron Transport System . Amino acid biosynthesis and the production of purines are complete, however of the pyrimidines, the cytidine production pathway lacks the final cytidine triphosphate synthetase, hence, cytidine cannot be synthesized. In order for C. diphtheriaeto to colonize the host, it needs this pyrimidine base. What is this nutrient requirement called, and from where does the bacterium obtain it?
With the help of well-labelled diagrams, describe the process of plasmolysisin plants, giving appropriate examples.
Chapter 21 Solutions
PRESCOTT'S MICROBIOLOGY
Ch. 21.3 - In what ways are members of Aquifex and Thermotoga...Ch. 21.3 - Prob. 2CCCh. 21.3 - Design an experiment designed to explore the role...Ch. 21.3 - Explain the relationship between genome size and...Ch. 21.4 - Which of the phototrophs discussed perform...Ch. 21.4 - Prob. 1.2CCCh. 21.4 - Compare the capacity of green nonsulfur...Ch. 21.4 - Why do you think NH3 is converted to the amino...Ch. 21.4 - Prob. 2.1CCCh. 21.4 - Prob. 2.2CC
Ch. 21.4 - Prob. 2.3CCCh. 21.4 - Describe how a vegetative cell, a heterocyst, and...Ch. 21.4 - Prob. 2.5CCCh. 21.4 - Prob. 2.6CCCh. 21.5 - Prob. 1MICh. 21.5 - Prob. 2MICh. 21.5 - Prob. 1CCCh. 21.5 - Prob. 2CCCh. 21.5 - What might have been some of the culture...Ch. 21.5 - Prob. 4CCCh. 21.5 - Prob. 5CCCh. 21.7 - Prob. 1MICh. 21.8 - Prob. 1CCCh. 21.8 - Prob. 2CCCh. 21.8 - Prob. 3CCCh. 21.8 - Why are cytophagas ecologically important?Ch. 21.8 - Prob. 5CCCh. 21 - Prob. 1RCCh. 21 - Prob. 2RCCh. 21 - Prob. 3RCCh. 21 - Prob. 4RCCh. 21 - Prob. 5RCCh. 21 - Prob. 6RCCh. 21 - Prob. 7RCCh. 21 - The cyanobacterium Anabaena grows well in liquid...Ch. 21 - Compare the structural and functional differences...Ch. 21 - Prob. 3ALCh. 21 - Prob. 4ALCh. 21 - Prob. 5AL
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