EBK BIOLOGY
10th Edition
ISBN: 8220100474729
Author: Martin
Publisher: Cengage Learning US
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Chapter 24.3, Problem 5LO
Summary Introduction
To contrast: In between a lytic cycle and a lysogenic cycle.
Introduction: Virus requires a living host to replicate. In bacteriophage, the virus attaches itself to the host and penetrates the DNA of the virus into the nucleus of the host. The viral DNA then uses the bacterial machinery to replicate.
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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
EBK BIOLOGY
Ch. 24.1 - Contrast a virus with a cellular organism.Ch. 24.1 - Prob. 2LOCh. 24.1 - Prob. 1CCh. 24.1 - What are the structural components of a virus?Ch. 24.2 - Prob. 3LOCh. 24.2 - Prob. 1CCh. 24.3 - Prob. 4LOCh. 24.3 - Prob. 5LOCh. 24.3 - Prob. 1CCh. 24.3 - Prob. 2C
Ch. 24.4 - Prob. 6LOCh. 24.4 - Prob. 7LOCh. 24.4 - Prob. 1CCh. 24.4 - Prob. 2CCh. 24.4 - Prob. 3CCh. 24.5 - Trace the evolutionary origin of viruses according...Ch. 24.5 - Prob. 1CCh. 24.5 - Prob. 2CCh. 24.6 - Prob. 9LOCh. 24.6 - Prob. 1CCh. 24 - The genome of a virus consists of (a) DNA (b) RNA...Ch. 24 - Prob. 2TYUCh. 24 - Prob. 3TYUCh. 24 - Test Your Understanding Know and Comprehend 4. In...Ch. 24 - Prob. 5TYUCh. 24 - Prob. 6TYUCh. 24 - Prob. 7TYUCh. 24 - Prob. 8TYUCh. 24 - Arrange the following list into the correct...Ch. 24 - Arrange the following list into the correct...Ch. 24 - VISUALIZE What does this diagram illustrate?...Ch. 24 - Prob. 12TYUCh. 24 - Prob. 13TYUCh. 24 - Prob. 14TYUCh. 24 - Prob. 15TYUCh. 24 - Prob. 16TYU
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