Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Chapter 32.1, Problem 1.5RIA
Why is it important that the rumen is a reducing environment?
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Why is it important that the rumen is a reducing environment?
What compound(s) can be absorbed from the rumen?
How does gastrointestinal tract evade dehydration?
1)
Alternating wave-like contraction and relaxatio of the oral (mouth) muscles reabsorbs water which will be transported to the urinary system
2) water is an important digestive enzyme in the stomach.
3) Normal peristaltic movements in the large intestine ensure reabsorption of water that will be delivered to the circulatory system.
4) the water we drink will be mostly absord by the blood vessels attached to the esophagus and stomach.
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Chapter 32 Solutions
Prescott's Microbiology
Ch. 32.1 - What methanogenic substrates are also available in...Ch. 32.1 - What is the nutritional type of the endosymbiotic...Ch. 32.1 - Prob. 3MICh. 32.1 - How does myxobacterial predation differ from that...Ch. 32.1 - How could one test to see if an insect-microbe...Ch. 32.1 - What is the role of the Riftia tube worms...Ch. 32.1 - Prob. 1.3RIACh. 32.1 - What is meant by tight trophic coupling between...Ch. 32.1 - Why is it important that the rumen is a reducing...Ch. 32.1 - Describe the mutualism between methanogenic...
Ch. 32.1 - How does cooperation differ from mutualism? What...Ch. 32.1 - Why is the X. nematophilaS. carpocapsae symbiosis...Ch. 32.1 - Prob. 3.1RIACh. 32.1 - Why is nitrification a good example of a...Ch. 32.1 - Define predation and parasitism. How are these...Ch. 32.1 - Prob. 3.4RIACh. 32.1 - What is a lichen? Why is this considered an...Ch. 32.1 - Describe the amensalism observed in attine ant...Ch. 32.1 - Prob. 4.2RIACh. 32.1 - What is the competitive exclusion principle? List...Ch. 32.2 - How might a microbial symbiont affect the uptake...Ch. 32.2 - Cite three reasons a germfree mouse would be more...Ch. 32.2 - People who suffer from colitis often find that...Ch. 32.3 - 1. Why is it important to understand the normal...Ch. 32.3 - Why is the skin not always a favorable...Ch. 32.3 - How do microorganisms contribute to body odor?Ch. 32.3 - Prob. 1.4RIACh. 32.3 - Prob. 2.1RIACh. 32.3 - What physiological processes move the microbiota...Ch. 32.3 - What is the role of pH in determining the...Ch. 32.3 - How would you define an opportunistic...Ch. 32 - Describe an experimental approach to determine if...Ch. 32 - Prob. 2CHICh. 32 - Prob. 3CHICh. 32 - Compare and contrast the microbial communities...Ch. 32 - The fruit fly Drosophila melanogaster is an...
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- What is the role of the accessory organs in digestion?arrow_forwardWhat are the main functions of the stomach? What roles do enzymes and hormones play?arrow_forwardWhat are the important roles of saliva in a ruminant’s digestion process? What are the components of saliva that provide their buffering action in the rumen?arrow_forward
- Pathway of food through the alimentary canal: mouth→1. __________→esophagus→2. _______→duodenum→3. ___________→ileum→4. _________→ascending colon→transverse colon→descending colon→5._______→rectum→6. _______arrow_forwardWhich of the following yields nutrients? (a) bolus, (b) chyme, (feces)arrow_forwardWhich of the following words is missing in the following sentence: Parietal cells in the gastric glands in the pylorus part form _______________________ which binds to vitamin ____________ so that it can be more easily taken up in the ileum. a) mucus; C b) intrinsic factor; B12 c) pepsinogen; C d) pepsinogen; B12 e) intrinsic factor; Carrow_forward
- What are the major benefits and the disadvantages of a rumen system? How does a cecal animal compare with a ruminant?arrow_forwardin studying digestion (specifically the duodenum and pancreas) What is the difference between the sphincter of odii, ampula of vater, duodenal papilla and hepatopancreatic sphincter?arrow_forwardWhat is a moistened food that can be swallowed easily called?arrow_forward
- Why is cellulolytic breakdown possible only among ruminants? What makes the ruminants’ digestion process unique compared with monogastric digestion?arrow_forwardWhy is there a need to increase the surface area intestines?arrow_forwardWhere are carbohydrates digested? Name the enzymesresponsiblearrow_forward
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