EP PRINCIPLES OF HUM.PHYS.-MOD.MAST.A+P
6th Edition
ISBN: 9780134407166
Author: STANFIELD
Publisher: PEARSON CO
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Chapter 23.6, Problem 2CTQ
Summary Introduction
To write:
The stages of HIV infection with their symptoms.
Introduction:
HIV refers to a virus, which assaults the immune system cells, that is, the body’s natural defense against the illness. The virus leads to the destruction of a kind of white blood cell known helper T cells and creates duplicates of itself within the cells. Due to the destruction of T-helper cells, the immune system of an individual slowly gets weaken.
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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 23 Solutions
EP PRINCIPLES OF HUM.PHYS.-MOD.MAST.A+P
Ch. 23.1 - Prob. 23.1.1QCCh. 23.1 - Name the two central lymphoid tissues. Why are...Ch. 23.2 - Prob. 23.2.1QCCh. 23.2 - Prob. 23.2.2QCCh. 23.3 - Prob. 23.3.1QCCh. 23.3 - Prob. 23.3.2QCCh. 23.3 - Prob. 23.3.3QCCh. 23.3 - Prob. 23.3.4QCCh. 23.3 - Prob. 1CTQCh. 23.3 - Prob. 2CTQ
Ch. 23.3 - Prob. 3CTQCh. 23.3 - Prob. 23.4.1QCCh. 23.3 - Prob. 23.4.2QCCh. 23.3 - Prob. 23.4.3QCCh. 23.3 - Prob. 23.4.4QCCh. 23.4 - Prob. 23.5.1QCCh. 23.4 - Prob. 23.5.2QCCh. 23.4 - Prob. 23.5.3QCCh. 23.5 - Prob. 23.6.1QCCh. 23.5 - Prob. 23.6.2QCCh. 23.5 - Prob. 23.6.3QCCh. 23.5 - Prob. 23.6.4QCCh. 23.6 - Prob. 1CTQCh. 23.6 - Prob. 2CTQCh. 23.6 - Prob. 3CTQCh. 23.6 - Prob. 23.7.1QCCh. 23.6 - Prob. 23.7.2QCCh. 23.6 - Prob. 1aCTQCh. 23.6 - Prob. 2aCTQCh. 23.6 - Prob. 3aCTQCh. 23.6 - Which class of antibody is induced in allergies...Ch. 23.6 - Does rheumatoid arthritis result from a humoral...Ch. 23.6 - Name two lymphoid organs that are innervated by...Ch. 23.6 - Prob. 1bCTQCh. 23.6 - Prob. 2bCTQCh. 23.6 - Prob. 3bCTQCh. 23 - Prob. 1ECh. 23 - Prob. 2ECh. 23 - Prob. 3ECh. 23 - Lymphocytes contact foreign antigen in all of the...Ch. 23 - Which of the following is not true about humoral...Ch. 23 - Macrophages
a. are derived from monocytes.
b....Ch. 23 - Activated cytotoxic T cells release pore-forming...Ch. 23 - Prob. 8ECh. 23 - Prob. 9ECh. 23 - Foreign antigens phagocytosed by macrophages are...Ch. 23 - Of the following events, which occurs earliest in...Ch. 23 - Prob. 12ECh. 23 - Prob. 13ECh. 23 - Prob. 14ECh. 23 - Prob. 15ECh. 23 - Fill in the blank with the abbreviation for the...Ch. 23 - Fill in the blank with the letter that applies to...Ch. 23 - A person who experiences life-threatening allergic...Ch. 23 - Prob. 19ECh. 23 - Prob. 20ECh. 23 - Prob. 21ECh. 23 - Prob. 22ECh. 23 - Prob. 23ECh. 23 - Prob. 24ECh. 23 - Prob. 25ECh. 23 - Immune responses exhibit four features, all of...Ch. 23 - Prob. 27ECh. 23 - Prob. 28ECh. 23 - Prob. 29ECh. 23 - Prob. 30E
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