Foundations in Microbiology
9th Edition
ISBN: 9780073522609
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Chapter 24.L1, Problem 7WC
Summary Introduction
To determine:
The DNA viruses that are oncogenic, sexually transmitted, spread by blood and blood products, and spread by respiratory droplets, kissing, and other nonsexual intimate contact.
Introduction:
The mode of transmission of viruses is quite varied. Although some viruses are transmitted by vectors, most are transmitted by direct contact of some kind. Many viruses do not last long on fomites, so they must be transmitted by human contact.
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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 24 Solutions
Foundations in Microbiology
Ch. 24.1 - Prob. 1ELOCh. 24.1 - Prob. 2ELOCh. 24.1 - Explain how viral structure is related to viral...Ch. 24.1 - Discuss the structures found in a typical virus.Ch. 24.1 - Differentiate among lytic infection, latent...Ch. 24.1 - Relate the importance of structure to viral...Ch. 24.1 - What accounts for the affinity of viruses for...Ch. 24.1 - What accounts for the symptoms of viral diseases?Ch. 24.1 - In what ways can people carry viruses?Ch. 24.2 - Prob. 4ELO
Ch. 24.2 - Understand why vaccination against smallpox has...Ch. 24.2 - Prob. 6ELOCh. 24.2 - What structural attributes differentiate smallpox...Ch. 24.2 - Prob. 8CYPCh. 24.2 - Prob. 9CYPCh. 24.3 - Prob. 7ELOCh. 24.3 - Prob. 8ELOCh. 24.3 - Prob. 9ELOCh. 24.3 - Prob. 10ELOCh. 24.3 - Understand the etiological agent, epidemiology,...Ch. 24.3 - Prob. 12ELOCh. 24.3 - Prob. 13ELOCh. 24.3 - Prob. 10CYPCh. 24.3 - Prob. 11CYPCh. 24.3 - Describe the ways in which HSV-1 differs from...Ch. 24.3 - Prob. 13CYPCh. 24.3 - Prob. 14CYPCh. 24.3 - Prob. 15CYPCh. 24.3 - Summarize the signs, symptoms, and epidemiology...Ch. 24.3 - What cancers are related to infection with...Ch. 24.3 - Prob. 18CYPCh. 24.4 - Contrast the major characteristics of the three...Ch. 24.4 - Understand the epidemiology, diagnosis, pathology,...Ch. 24.4 - Prob. 19CYPCh. 24.4 - Prob. 20CYPCh. 24.4 - What groups are most at risk for developing...Ch. 24.4 - What is the nature of the vaccines for hepatitis...Ch. 24.5 - Recall the structure, epidemiology, and diseases...Ch. 24.5 - Prob. 17ELOCh. 24.5 - Prob. 18ELOCh. 24.5 - Prob. 19ELOCh. 24.5 - Prob. 20ELOCh. 24.5 - Prob. 21ELOCh. 24.5 - Prob. 23CYPCh. 24.5 - Prob. 24CYPCh. 24.5 - Prob. 25CYPCh. 24.5 - What is the importance of the HPV vaccines?Ch. 24.5 - Prob. 27CYPCh. 24.5 - Prob. 28CYPCh. 24.L1 - Prob. 1MCQCh. 24.L1 - Prob. 2MCQCh. 24.L1 - Which virus is used in smallpox vaccination? a....Ch. 24.L1 - Prob. 4MCQCh. 24.L1 - Prob. 5MCQCh. 24.L1 - Prob. 6MCQCh. 24.L1 - _____ is an effective treatment for herpes simplex...Ch. 24.L1 - Which herpesvirus is most commonly associated with...Ch. 24.L1 - Prob. 9MCQCh. 24.L1 - A common sign of hepatitis is a. liver cancer b....Ch. 24.L1 - Prob. 11MCQCh. 24.L1 - Prob. 12MCQCh. 24.L1 - Parvoviruses are unique because they contain a. a...Ch. 24.L1 - Adenoviruses are the agents of a. hemorrhagic...Ch. 24.L1 - Prob. 15MCQCh. 24.L1 - Prob. 16MCQCh. 24.L1 - Prob. 17MCQCh. 24.L1 - Prob. 1CSRCh. 24.L1 - Aggressive vaccination campaigns have led to the...Ch. 24.L1 - Prob. 3CSRCh. 24.L1 - Prob. 1WCCh. 24.L1 - Explain the involvement of viruses in cancer and...Ch. 24.L1 - Prob. 3WCCh. 24.L1 - Develop a table for the herpesviruses that...Ch. 24.L1 - Prob. 5WCCh. 24.L1 - Prob. 6WCCh. 24.L1 - Prob. 7WCCh. 24.L2 - Prob. 1CTCh. 24.L2 - Describe several measures health care workers can...Ch. 24.L2 - Prob. 3CTCh. 24.L2 - Prob. 4CTCh. 24.L2 - a. Name two different defective viruses that...Ch. 24.L2 - Prob. 6CTCh. 24.L2 - A man wants to divorce his wife because he...Ch. 24.L2 - Weigh the following observation: High titers of...Ch. 24.L2 - Give some pros and cons of exposing children to...Ch. 24.L2 - Prob. 10CTCh. 24.L2 - What two different DNA viral infections can be...Ch. 24.L2 - Prob. 1VC
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