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 24.2, Problem 1CR
Q How do microbial diversity and abundance vary along the length of the gastrointestinal tract?
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Chapter 24 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 24.1 - Which major body sites are heavily colonized by...Ch. 24.1 - What methods have been used to assess the human...Ch. 24.1 - Prob. 3MQCh. 24.1 - Prob. 1CRCh. 24.2 - How does the general metabolism of microorganisms...Ch. 24.2 - What is an enterotype?Ch. 24.2 - QHow do microbial diversity and abundance vary...Ch. 24.3 - Prob. 1MQCh. 24.3 - Identify the major microbes that predominate in...Ch. 24.3 - Prob. 3MQ
Ch. 24.3 - Prob. 1CRCh. 24.4 - Prob. 1MQCh. 24.4 - Prob. 2MQCh. 24.4 - Prob. 1CRCh. 24.5 - Prob. 1MQCh. 24.5 - Prob. 2MQCh. 24.5 - Prob. 1CRCh. 24.6 - Prob. 1MQCh. 24.6 - Prob. 2MQCh. 24.6 - Prob. 3MQCh. 24.6 - What are the major anatomical differences between...Ch. 24.7 - Prob. 1MQCh. 24.7 - Prob. 2MQCh. 24.7 - What factor(s) are most important in the...Ch. 24.7 - Prob. 1CRCh. 24.8 - Prob. 1MQCh. 24.8 - Prob. 2MQCh. 24.8 - Prob. 3MQCh. 24.8 - Prob. 1CRCh. 24.9 - What observations indicate that dental carries are...Ch. 24.9 - Prob. 2MQCh. 24.9 - What are some clinical advantages of a...Ch. 24.9 - Why might a therapy based on colonization of the...Ch. 24.10 - Prob. 1MQCh. 24.10 - Prob. 2MQCh. 24.10 - Prob. 1CRCh. 24.11 - Prob. 1MQCh. 24.11 - Prob. 2MQCh. 24.11 - What is the mechanism by which C. scindens...Ch. 24 - Prob. 1AQ
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- Studies suggest the incidence of colon cancer may be lowered with high fibre diets. How might this be explained? Question 38 options: a) Fibre influences the intestinal microflora b) Fibre slows transit time c) Fibre increases contact between mucosal cells and colon content d) Fibre deactivates phytochemicals present in the colonarrow_forwardExplain the roles of the following organs in food processing in the human digestive system.• Oral Cavity, Pharynx, Esophagus, Stomach, Small Intestine, Large Intestine, Rectum and Anus.arrow_forwardbai29gib brns 28. A digestive organ that is not part of the GI tract is the: be a) stomach 2i b) liver lo sbem vlagnsi 91s (ea) emysna bemot st to c) small intestine 290 d) pharynx 2 sxe 2obiarrow_forward
- 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. Skip questionarrow_forwardWhen a child is transitioned from breast milk tosolid food, what are the associated changes in the gutmicrobial community and what physiological differencesdo those changes reflect?arrow_forwardnere digestive čéllš an rough body fluid. IV. Match the reasons with the situations indicated below: A) The epiglottis failed to close the trachea B) Peristaltic movement in the esophagus become slow C) Fats, proteins and cellulose are the hardest to digest D) Lower esophageal sphincter did not contract E) Undigested food stays too long in the large intestine 16. Always constipated. 17. Most likely happened when a person chocked while eating. 18. Cause of heart burn or pain in the chest but not related to the heart. 19. Happens when you swallow and you feel the bolus is stuck in the chest. 20. Reason why the food expelled when you vomit an hour after eating is just meat or vegetables, no rice or bread.arrow_forward
- How do microorganisms in the infant and adult gut communitycontribute differently to vitamin and amino acid requirements?arrow_forwardGive a schematic diagram of how we can nonpharmacologically manage Gastro Esophageal Reflux disease (GERD)? Please answer at your own words.arrow_forwardJII. Match the terms associated with animal nutrition with the statements below. A) Filter-feeder B) Incomplete digestion C) Food vacuoles D) Extracellular digestion E) Substrate feeder 11. Organisms that have one opening for both entry of food and exit of undigested food. 12. Vacuole which contains foreign substances that fuses with lysosome which is involved with cellular digestion. 13. Clams suck in water to strain small organisms and dissolved nutrients found in water. 14. Larvae that thrive on the source of its food such as fly larvae staying on meat surface. 15. Mushrooms excrete enzymes within its surrounding where digestive cells and nutrients are transferred back through body fluid.arrow_forward
- State the reservoir of Enterohemorrhagic E. coli (EHEC). How do humans acquire EHEC?arrow_forwardDescribe protein digestion by location: mouth, stomach, small intestine, enterocyte, large intestine. Define zymogen/proenzyme. Describe each key enzyme in protein digestion (including how each are activated). Describe the function and importance of enteropeptidase. Describe the function and importance of trypsin. Know the difference between an endogenous and exogenous peptidase. Describe the functions of brush border peptidases and cytosolic peptidases. Describe absorption of peptides and absorption of amino acid (they are different). Describe different fates of amino acids once they are absorbed and released into circulation. Describe what can happen if protein is not absorbed properly.arrow_forwardList the types of normal biota presently known to occupy the gastrointestinal tract.arrow_forward
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