EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 23.12, Problem 1MQ
Summary Introduction
Gut microbes are greatly helpful for the herbivore animals as they cannot extract or digest all the nutrients form a plant based food. The plant material is otherwise called as foliage. A large number of herbivore animals contain micro flora in their gut. These micro floras are mainly of cellulose digesting bacteria or protozoans.
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Compare foregut/hindgut fermentation strategies in herbivorous mammals.
The stomach has two types of exocrine cells: the chief cells, which secrete an inactive form of the protein-digesting enzyme pepsinogen, and the parietal cells, which secrete hydrochloric acid (HCl) that activates pepsinogen. Both cell types have an abundance of mitochondria for ATP production- the chief cells need energy to synthesize pepsinogen, and the parietal cells need energy to transport hydrogen ions. (H+) and chloride ions (Cl-) from the blood into the stomach lumen. Only one of these cell types has an extensive rough endoplasmic reticulum and abundant Golgi stacks.
Would this be the chief cells or the parietal cell?
parietal cells.
The stomach has two types of exocrine cells, chief cell which secrete an inactive form of the protein degesting enzymes pepsinogen, and parietal cells , which secrete hydrochloric acid that activates pepsinogen.Both cell types have an abundance of mitochondria ATP production.The chief cells need energy to synthesise pepsinogen and parietal cells need energy to transport hydrogen ions and chloride ions from the blood into the stomach lumen.Only one of this cell types has an extensive roung endoplasmic and abandant Golgi stacks. Would this be the chief cells or parietal cells?why?
Chapter 23 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 23.1 - What two microbes form a partnership in the lichen...Ch. 23.1 - Prob. 2MQCh. 23.1 - Prob. 1CRCh. 23.2 - What is the evidence that "Chlorochromatium...Ch. 23.2 - Prob. 2MQCh. 23.2 - How might nutrients be shuttled between phototroph...Ch. 23.2 - QWhat mechanisms do the consortia use to orient at...Ch. 23.3 - Prob. 1MQCh. 23.3 - Prob. 2MQCh. 23.3 - What is a bacteroid and what occurs within it?...
Ch. 23.3 - What are the major similarities and differences...Ch. 23.3 - QDescribe the steps in the development of root...Ch. 23.4 - Prob. 1MQCh. 23.4 - Prob. 2MQCh. 23.4 - How do mycorrhizal fungi promote plant diversity?Ch. 23.4 - Prob. 1CRCh. 23.5 - Prob. 1MQCh. 23.5 - How do the vir genes differ from T-DNA in the Ti...Ch. 23.5 - How has an understanding of crown gall disease...Ch. 23.5 - Prob. 1CRCh. 23.6 - Prob. 1MQCh. 23.6 - What are the consequences of symbiont genome...Ch. 23.6 - How could it be determined if a symbiont and its...Ch. 23.6 - QHow is it possible for aphids to feed only on the...Ch. 23.7 - How are anoxic conditions maintained in the...Ch. 23.7 - Why does reductive acetogenesis predominate over...Ch. 23.7 - Prob. 3MQCh. 23.7 - QHow do the microbial communities of higher and...Ch. 23.8 - Prob. 1MQCh. 23.8 - Prob. 2MQCh. 23.8 - How is the correct bacterial symbiont selected in...Ch. 23.9 - Prob. 1MQCh. 23.9 - What are the similarities of the obligate...Ch. 23.9 - Prob. 3MQCh. 23.9 - Prob. 1CRCh. 23.10 - What evidence suggest that the nematodes and their...Ch. 23.10 - What prevents other bacteria from colonizing the...Ch. 23.10 - QWhy are entomopathogenic nematodes so attractive...Ch. 23.11 - Prob. 1MQCh. 23.11 - What are the two mechanisms of Symbiodinium...Ch. 23.11 - Prob. 3MQCh. 23.11 - Prob. 1CRCh. 23.12 - Prob. 1MQCh. 23.12 - Prob. 2MQCh. 23.12 - Prob. 1CRCh. 23.13 - Prob. 1MQCh. 23.13 - Prob. 2MQCh. 23.13 - Prob. 3MQCh. 23.13 - QGive an example of a single microbial species...Ch. 23 - Imagine that you have discovered a new animal that...Ch. 23 - Prob. 2AQ
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