GEN COMBO LOOSELEAF MICROBIOLOGY:A SYSTEMS APPROACH; CONNECT ACCESS CARD
5th Edition
ISBN: 9781260149364
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 23, Problem 4MCQ
Syphilis is caused by
- a. Treponema pallidum.
- b. Neisseria gonorrhoeae.
- c. Trichomonas vaginalis.
- d. Haemophilus ducreyi.
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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
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
Which 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.
Chapter 23 Solutions
GEN COMBO LOOSELEAF MICROBIOLOGY:A SYSTEMS APPROACH; CONNECT ACCESS CARD
Ch. 23.1 - Draw or describe the anatomical features of the...Ch. 23.1 - List the natural defenses present in the...Ch. 23.2 - Prob. 3AYPCh. 23.2 - Prob. 4AYPCh. 23.3 - List the possible causative agents for each type...Ch. 23.3 - List the possible causative agents for each type...Ch. 23.3 - Discuss the epidemiology of the three types of...Ch. 23.4 - Prob. 7AYPCh. 23.4 - Prob. 8AYPCh. 23.4 - Prob. 9AYP
Ch. 23.4 - Prob. 10AYPCh. 23.4 - Prob. 11AYPCh. 23.4 - Prob. 12AYPCh. 23.4 - Identify the most important risk group for group B...Ch. 23 - Prob. 1MCQCh. 23 - Prob. 2MCQCh. 23 - Prob. 3MCQCh. 23 - Syphilis is caused by a. Treponema pallidum. b....Ch. 23 - Prob. 5MCQCh. 23 - Prob. 6MCQCh. 23 - Prob. 7MCQCh. 23 - Prob. 8MCQCh. 23 - The drug Flagyl can be used to treat the protozoan...Ch. 23 - Prob. 10MCQCh. 23 - Prob. 11TFCh. 23 - Prob. 12TFCh. 23 - Prob. 13TFCh. 23 - Prob. 14TFCh. 23 - Prob. 15TFCh. 23 - Prob. 1CTQCh. 23 - Summarize how a laboratory technologist would...Ch. 23 - a. Explain why microscopic analysis of a urine...Ch. 23 - Prob. 4CTQCh. 23 - Why are urinary tract infections such common...Ch. 23 - Prob. 1VCCh. 23 - Prob. 1CM
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