
Foundations in Microbiology
9th Edition
ISBN: 9780073522609
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 21.L2, Problem 7CT
Summary Introduction
To determine:
The condition that leads to disease by L forms.
Introduction:
L forms are the bacterial phase or cells that have lost their cell walls. They are not related to mycoplasmas.
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?
The cell membranes are more resistant than normal.
An isotonic solution had been added instead of water.
A solution of 0.1 M NaCl had been added instead of water.
Not enough water had been added to the red blood cell pellet.
The man had sickle-cell anaemia.
With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin
Chapter 21 Solutions
Foundations in Microbiology
Ch. 21.1 - Differentiate among the different stages of...Ch. 21.1 - Prob. 2ELOCh. 21.1 - List the nonsyphilitic treponematoses.Ch. 21.1 - Prob. 4ELOCh. 21.1 - Identify the vectors and behaviors associated with...Ch. 21.1 - Construct a table comparing the symptoms of...Ch. 21.1 - Prob. 2CYPCh. 21.1 - Besides syphilis, what other diseases are caused...Ch. 21.1 - List several behaviors that would put one at risk...Ch. 21.2 - Relate the physical characteristics seen in the...
Ch. 21.2 - Understand the pathogenesis of cholera.Ch. 21.2 - Name the usual source of infection for each genus...Ch. 21.2 - Prob. 9ELOCh. 21.2 - How could one differentiate the genera Vibrio,...Ch. 21.2 - Prob. 6CYPCh. 21.2 - Which two species of curviform bacteria are...Ch. 21.2 - Briefly describe the nature of food infection in...Ch. 21.2 - Prob. 9CYPCh. 21.3 - Prob. 10ELOCh. 21.3 - Understand the epidemiology and pathology of Rocky...Ch. 21.3 - Prob. 12ELOCh. 21.3 - Prob. 13ELOCh. 21.3 - Prob. 14ELOCh. 21.3 - Recall the names and characteristics of diseases...Ch. 21.3 - What do rickettsias and chlamydias derive from the...Ch. 21.3 - Provide an example of a species, vector, and...Ch. 21.3 - Prob. 12CYPCh. 21.3 - Prob. 13CYPCh. 21.3 - Prob. 14CYPCh. 21.3 - Prob. 15CYPCh. 21.3 - Prob. 16CYPCh. 21.3 - Prob. 17CYPCh. 21.4 - Describe the characteristics and diseases of...Ch. 21.4 - Describe how L forms may arise.Ch. 21.4 - Prob. 18CYPCh. 21.4 - Prob. 19CYPCh. 21.4 - Which body systems are affected by mycoplasma...Ch. 21.4 - Explain why penicillin therapy may result in the...Ch. 21.5 - Discuss the formation of plaque on tooth surfaces.Ch. 21.5 - Relate the formation of plaque to periodontitis.Ch. 21.5 - Prob. 22CYPCh. 21.5 - Prob. 23CYPCh. 21.5 - Prob. 24CYPCh. 21.5 - Prob. 25CYPCh. 21.L1 - Prob. 1MCQCh. 21.L1 - Prob. 2MCQCh. 21.L1 - Prob. 3MCQCh. 21.L1 - Prob. 4MCQCh. 21.L1 - Prob. 5MCQCh. 21.L1 - Prob. 6MCQCh. 21.L1 - Relapsing fever is spread by a. lice b. ticks c....Ch. 21.L1 - Prob. 8MCQCh. 21.L1 - Prob. 9MCQCh. 21.L1 - Prob. 10MCQCh. 21.L1 - Prob. 11MCQCh. 21.L1 - Prob. 12MCQCh. 21.L1 - Prob. 13MCQCh. 21.L1 - Prob. 14MCQCh. 21.L1 - Mycoplasmas attack the ____ of host cells. a....Ch. 21.L1 - Prob. 16MCQCh. 21.L1 - Prob. 17MCQCh. 21.L1 - Prob. 18MCQCh. 21.L1 - Prob. 19MCQCh. 21.L1 - Prob. 20MCQCh. 21.L1 - Prob. 1CSRCh. 21.L1 - What other risk factors could have alerted...Ch. 21.L1 - Prob. 3CSRCh. 21.L1 - Prob. 1WCCh. 21.L1 - Prob. 2WCCh. 21.L1 - a. In what ways are dental diseases mixed...Ch. 21.L1 - a. Which diseases in this chapter are zoonoses? b....Ch. 21.L2 - a. Why does syphilis have such profound effects on...Ch. 21.L2 - a. In view of the fact that cholera causes the...Ch. 21.L2 - Prob. 3CTCh. 21.L2 - Prob. 4CTCh. 21.L2 - Prob. 5CTCh. 21.L2 - Prob. 6CTCh. 21.L2 - Prob. 7CTCh. 21.L2 - Which two infectious agents covered in this...Ch. 21.L2 - a. In what way is the oral cavity an ecological...Ch. 21.L2 - Prob. 10CTCh. 21.L2 - Prob. 11CTCh. 21.L2 - Prob. 12CTCh. 21.L2 - Prob. 1VC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobinarrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forwardWhich ONE of the following is FALSE regarding haemoglobin? It has two alpha subunits and two beta subunits. The subunits are joined by disulphide bonds. Each subunit covalently binds a haem group. Conformational change in one subunit can be transmitted to another. There are many variant ("mutant") forms of haemoglobin that are not harmful.arrow_forward
- During a routine medical check up of a healthy man it was found that his haematocrit value was highly unusual – value of 60%. What one of the options below is the most likely reason? He will have a diet high in iron. He is likely to be suffering from anaemia. He lives at high altitude. He has recently recovered from an accident where he lost a lot of blood. He has a very large body size.arrow_forwardExplain what age of culture is most likely to produce an endospore?arrow_forwardExplain why hot temperatures greater than 45 degrees celsius would not initiate the sporulation process in endospores?arrow_forward
- Endospore stain: Consider tube 2 of the 7-day bacillus culture. After is was heated, it was incubated for 24 hours then refrigerated. Do you think the cloudiness in this tube is due mostly to vegetative cells or to endospores? Explain your reasoningarrow_forwardReactunts C6H12O6 (Glucose) + 2NAD+ + 2ADP 2 Pyruvic acid + 2NADH + 2ATP a. Which of the above are the reactants? b. Which of the above are the products? c. Which reactant is the electron donor? GHz 06 (glucose) d. Which reactant is the electron acceptor? NAD e. Which of the products have been reduced? NADH f. Which of the products have been oxidized? g. Which process was used to produce the ATP? h. Where was the energy initially in this chemical reaction and where is it now that it is finished? i. Where was the carbon initially in this chemical reaction and where is it now that it is finished? j. Where were the electrons initially in this chemical reaction and where is it now that it is finished? 3arrow_forwardThere is ________ the concept of global warming. Very strong evidence to support Some strong evidence to support Evidence both supporting and against Evidence againstarrow_forward
- How many types of reactions can an enzyme perform?arrow_forwardYour goal is to produce black seeds resistant to mold. So you make the same cross again (between a homozygous black seeded, mold susceptible parent and a homozygous white seeded and mold resistant parent), and, again, advance progeny by SSD to create 100 F10 generation plants. Based on the information you obtained from your first crossing experiment (Question #4), how many F10 plants would you expect to have black seeds and be resistant to mold? Assume that a toxin produced by the mold fungus has been isolated. Only mold resistant seeds will germinate in the presence of the toxin. Could you use this toxin screening procedure to have segregation distortion work in your favor in the F2 generation? Explain your answer. Info from Question 4 a. P Locus (Seed Color): Hypothesis: The null hypothesis (H₀) is that seed color is controlled by alleles at a single locus. Observed Data: Total white seeds: 45 (resistant plants) + 6 (susceptible plants) = 51 Total black seeds: 7 (resistant…arrow_forward10. Consider the following enzyme and its substrate where the "+" and "-" indicate cations and anions, respectively. Explain which of the following inhibitors could inhibit this enzyme? Which type of inhibitor would it be and why? (Video 5-2) Substrate Enzyme Potential inhibitorsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning

Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning

Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Infectious Diseases - How do we control them?; Author: Let's Learn Public Health;https://www.youtube.com/watch?v=2JWku3Kjpq0;License: Standard Youtube License