Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Chapter 27, Problem 2MCQ
Summary Introduction
Introduction:
Nitrogen is one of the key components necessary for the survival of all organisms. Nitrogen is found in proteins and
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Chapter 27 Solutions
Microbiology: An Introduction
Ch. 27 - The koala is a leaf-eating animal. What can you...Ch. 27 - Give one possible explanation of why Penicillium...Ch. 27 - In the sulfur cycle, microbes degrade organic...Ch. 27 - Why is the phosphorus cycle important?Ch. 27 - DRAW IT 5. Identify where the following processes...Ch. 27 - Prob. 6RCh. 27 - Outline the treatment process for drinking water.Ch. 27 - Prob. 8RCh. 27 - Bioremediation refers to the use of living...Ch. 27 - NAME IT 10. These nitrogen-fixing prokaryotes...
Ch. 27 - Prob. 1ACh. 27 - Explain the effect of dumping untreated sewage...Ch. 27 - Activated sludge system a. the process takes place...Ch. 27 - Prob. 2MCQCh. 27 - Nitrogen fixation a. the process takes place under...Ch. 27 - Prob. 4MCQCh. 27 - The water used to prepare intravenous solutions in...Ch. 27 - CO2+H2SLightLightC6H12O6+S0 a. aerobic respiration...Ch. 27 - Prob. 7MCQCh. 27 - CO2+8H++8eCH4+2H2O a. aerobic respiration b....Ch. 27 - Prob. 9MCQCh. 27 - Coliforms are used as indicator organisms of...Ch. 27 - Flooding after two weeks of heavy rainfall in...Ch. 27 - The bioremediation process shown in the photograph...
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- a. What is the function of bactoprenol in peptidoglycan synthesis? b. During peptidoglycan synthesis, removal of a phosphate group from bactoprenol pyrophosphate is inhibited. What is the immediate outcome? What does this mean for cell wall synthesis? Which antibiotic works via this mechanism? c. Bacterium Y is photosynthetic. You want to decrease the ability of Bacterium Y to produce glucose through photosynthesis. Explain how you could manipulate the light reactions of photosynthesis to decrease glucose production during the dark reactions in Bacterium Y. Include the name of the pathway that makes glucose during the dark reactions, which/how molecules from the light reactions are used in this pathway, and what specific steps of this pathway would be affected by your manipulations.arrow_forwarda. Describe how a biosafety cabinet provides protection for the product, environment, and yourself. b. Why are the cells grown in a CO2 incubator?arrow_forward1. cellular respiration A. the first step of cellular respiration that takes place in the cytoplasm and produces a net of 2 molecules of ATP for every one molecule of glucose 2. glycolysis 3. aerobic respiration B. the general type of cellular respiration that occurs when no oxygen is present 4. anaerobic respiration 5. mitochondrion C. general process that breaks down glucose to produce ATP 6. Krebs cycle D. the type of anaerobic respiration that occurs in animal cells E. the general type of cellular respiration that occurs in the mitochondria when oxygen is available to a cell 7. alcoholic fermentation 8. electron transport chain F. the step in aerobic respiration that produces 36 molecules of ATP for every one molecule of glucose 9. lactic acid fermentation G. the type of anaerobic respiration that occurs in plant cells H. the step in aerobic respiration that produces 2 molecules of ATP for every one molecule of glucose I. the cell organelle where aerobic respiration takes placearrow_forward
- D. The correct sequence of cytochrome carriers in respiratory chain is (A) Cyt b-cyt c-cyt c1-cyt aa3 (B) Cyt aa3- cyt b-cyt c-cyt c1 (C) Cyt b-cyt c1-cyt c-cyt aa3 (D) Cyt b-cyt aa3-cyt c1- cyt carrow_forwardThe process that occurs in the mitochondria is A. anaerobic B. anabolism C. aerobic D. catabolismarrow_forwardCyanosis is caused in case of... A. Lack of water B. Lack of blood C. Lack of glucose D. Lack of oxygenarrow_forward
- Match the granule with their function. ✓ Azurophilic Specific Gelatinase Secretory vesicles A. facilitate extravasation B. functions to sequester iron C. associated with respiratory burst D. break up microorganismsarrow_forwardPyruvic acid fermentation, which produces lactic acid, occurs A. aerobically B. anaerobically C. both aerobically and anaerobicallyarrow_forwarda. Some microbes can utilize fermentation to make ATP. Compare and contrast fermentation and aerobic respiration, including the typical inputs and outputs of each. b. Two liquid culture flasks of E. coli are grown in the same medium (2% glucose and amino acids) and at the same temperature (37°C). Culture #1 is well aerated. Culture #2 is anoxic. After 16 hours, the following observations are made: • Culture # 1 has a high cell density; the cells appear to be in stationary phase, and the glucose level in the medium is reduced to 1.2%. • Culture #2 has a low cell density; the cells appear to be in logarithmic phase, although their doubling time is prolonged (over 1 hour). The glucose level is reduced to 0.2%. Why does Culture #2 have so little glucose remaining relative to Culture #1, even though Culture #2 displayed slower growth and has less biomass?arrow_forward
- Toxic hydrogen peroxides resulting from intracellular oxidation reactions are catabolized by peroxisomes producing: a.ATPase b.Kinesin c.Catalase d.Kinase e.Polymerasearrow_forwardIt is essential for the cells in plants and animals to have an adequate supply of oxygen. Explain what the oxygen is needed for in the cells? (Be as specific as possible.)arrow_forwardb. Describe the process of oxidative phosphorylation and ETC in bacterial cells. Include the roles and features of ETC members c. Explain how fermentation is different from respiration.arrow_forward
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