Microbiology With Diseases By Taxonomy (6th Edition)
6th Edition
ISBN: 9780134832302
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 11, Problem 8MTF
Summary Introduction
Introduction:
Cyanobacteria are the phototropic bacteria which are gram-negative. They produce their food by using sunlight as a source of energy. They can be unicellular or can aggregate to be multicellular.
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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…
Prokaryotes reproduce by___________ and maysometimes exchange genetic material through the processof____________ .
spirulina cyanobacteria is photoautotroph or heterotroph,
Chapter 11 Solutions
Microbiology With Diseases By Taxonomy (6th Edition)
Ch. 11 - Prob. 1TMWCh. 11 - Why are taxonomic names and categories in our...Ch. 11 - Prob. 3TMWCh. 11 - Prob. 4TMWCh. 11 - Prob. 1MTFCh. 11 - Prob. 2MTFCh. 11 - Prob. 3MTFCh. 11 - Prob. 4MTFCh. 11 - Prob. 5MTFCh. 11 - Prob. 6MTF
Ch. 11 - Prob. 7MTFCh. 11 - Prob. 8MTFCh. 11 - Prob. 9MTFCh. 11 - Prob. 10MTFCh. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - Prob. 3MCCh. 11 - Prob. 4MCCh. 11 - How is Halobacterium salinarum distinctive? a. It...Ch. 11 - Prob. 6MCCh. 11 - Prob. 7MCCh. 11 - Prob. 8MCCh. 11 - Prob. 9MCCh. 11 - Prob. 10MCCh. 11 - Whereas the first edition of Bergeys Manual relied...Ch. 11 - What are extremophiles? Describe two kinds, and...Ch. 11 - Prob. 3SACh. 11 - Prob. 4SACh. 11 - Prob. 5SACh. 11 - Prob. 6SACh. 11 - How is Agrobacterium used in recombinant DNA...Ch. 11 - Name and describe five distinct classes of phylum...Ch. 11 - Label the shapes of these prokaryotic cells.Ch. 11 - Prob. 2VICh. 11 - Prob. 1CTCh. 11 - Prob. 2CTCh. 11 - Why is it that Gram-positive species dont have...Ch. 11 - Prob. 4CTCh. 11 - Prob. 5CTCh. 11 - Prob. 6CTCh. 11 - Prob. 7CTCh. 11 - Prob. 8CTCh. 11 - Prob. 9CTCh. 11 - Prob. 10CTCh. 11 - Prob. 11CT
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- Describe/define the following terms in relation to cyanobacteria: heterocysts akinete hormogonia gas/vesicles stromatolitesarrow_forwardClostridium perfringens bacteria, which can survive and grow on frostbitten human tissues, but only in the complete absence of oxygen gas, are properly categorized as: anaerobic autotrophs facultative autotrophs anaerobic heterotrophs aerobic heterotrophs aerobic autotrophsarrow_forwardOalgaeBASE dpalgaeBAsE B galgaeBASE Figure 3. A. Oscillatoria and B. Anabaena under microscope Reference source: https://www.algaebase.org/search/pictures/ 1. What is the colony morphology of these two cyanobacterial species having?arrow_forward
- Bacteria are capable of rapid ______________, and as a resultthese organisms vary enormously in size, shape,metabolism, and the habitats to which they have adapted.arrow_forwardPseudomonas aeruginosa might contribute to denitrification under which conditions? In an anaerobic environment with no carbon/energy source In an anaerobic environment with a carbon/energy source In an aerobic environment with a carbon/energy source In an aerobic environment with no carbon/energy sourcearrow_forwardTurbidity affects light penetration. Discuss how this impacts the growth and reproduction of the algae and cyanobacteriaarrow_forward
- The prokaryotes known as methanogens require ________ environments. anaerobic aerobic acidic high temperature high saltarrow_forwardIn secondary endosymbiosis, the plastid organelle is derived from engulfing Prokaryotic algal cell. an True Falsearrow_forwardWhich of the following is not correct about nitrogen fixation? Carried out only by few prokaryotic organisms termed diazotrophs It requires metabolic energy None of the above Enzyme that catalyzes the reduction of nitrogen is termed as nitrogenase complexarrow_forward
- Classify the following attributes as belonging to either purple photosynthetic bacteria or heliobacteria. Purple Photosynthetic Bacteria Heliobacteria Bacteriochlorophyll g Heterotrophic Cannot form endospores Reduced sulfur is electron donor for NAD* reduction Gram-positive Gram-negative Autotrophic Some form endospores Organic carbon electron donor for NAD* reduction Bacteriochlorophyll a or b Possess intracellular cytoplasmic Possess only plasma membrane membranesarrow_forwardEvery organism has to keep taking in and breaking down __________ to keep resupplying itself with the raw materials it needs to survive.arrow_forwardFill in the blank: Many gram-negative bacteria belong to group ______________of Phylum Proteobacteriaarrow_forward
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