Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 23.12, Problem 1CR
Summary Introduction
Ruminants are mammalian animals that are foregut fermenters. Some of them are domestic animals. The rumen is the digestive organ that ferment and digest large sized food particles known as cud. These animals obtain nutrients from a plant based food or plants as such. The rumen contains a warm as well as a constant temperature range of 39°C. Amino acids and vitamins are present in the rumen that are synthesized by its normal flora.
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Alternating wave-like contraction and relaxatio of the oral (mouth) muscles reabsorbs water which will be transported to the urinary system
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Chapter 23 Solutions
Brock Biology of Microorganisms (15th Edition)
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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- (i) Draw a well labeled diagram of human digestive system(ii) Describe the role of following in digestion.a) Bileb) Salivary amylasec) HClarrow_forwarda.What is a more common term for ingestion? b.What is a more common term for mechanical processing? c. What is the difference between digestion and absorption? d.What is the purpose of digestive enzymes and acids? e.What is a more common word for defecation?arrow_forwardHow are the different types of teeth used in feeding?arrow_forward
- Match each organ with its digestive function in humans. _____ gallbladder a. final stop for digestive waste _____ salivary gland b. makes bile _____ colon c. compacts undigested residues _____ liver d. adds enzymes to small intestine _____ esophagus e. delivers food to the stomach _____ rectum f. stores, secretes bile _____ stomach g. secretes gastric fluid _____ pancreas h. secretes enzyme that begins starch digestionarrow_forward1. List the common components of a representative digestive system, 2. describe its crosssectional anatomy 3. describe its neural-hormonal features.arrow_forwardWhy is it important that the rumen is a reducing environment?arrow_forward
- The diagram shows the components that comprise the Gastrointestinal System. label components A-J. For each labelled component relate there structure to their function.arrow_forward&Practice set 8. Describe the location and role of theparasympathetic nervous system in defecation.?arrow_forwardSomeone who has been running a race is probably quite hungry at the end of it, while someone who has been sitting and snacking all day might have an appetite but would not actually be hungry. Similarly, someone who has taken in all the nutrients he/she needs for a day might be in the condition of satiety, but might still need a pizza, an ice cream and a few bars of chocolate before feeling truly satiated. Explain the different concepts (i. Hunger; ii. Appetite; iii. Satiety and iv. Satiated) to your friend to help him understand how they are related.arrow_forward
- a. What is/are the implication/s of reading food labels and understanding the type of foods we eat? b. How does poor nutrition affect the physiology of the digestive system?arrow_forwardDefine Enteral nutrition, Gastric decompression, Gastroparesis, Hemodynamic stability, and Intermittent drip feeding.arrow_forward9.How does gastrointestinal tract evade dehydration? Read and analyze the question and choices CAREFULLY; more importantly, ALWAYS CHOOSE the BEST answer. Water is an important digestive enzyme in the stomach. Alternating wave-like contraction and relaxatio of the oral (mouth) muscles reabsorbs water which will be transported to the urinary system The water we drink will be mostly absord by the blood vessels attached to the esophagus and stomach. Normal peristaltic movements in the large intestine ensure reabsorption of water that will be delivered to the circulatory system.arrow_forward
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