Nester's Microbiology: A Human Perspective
8th Edition
ISBN: 9780073522593
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Chapter 15, Problem 8SA
Summary Introduction
To review:
The antigen-presenting cells.
Introduction:
An antigen-presenting cell (APC) refers to a kind of cell that shows an antigen complexed on their surfaces with the major histocompatibility complexes (MHC) and this process is referred to as antigen presentation. The immune cells, particularly T cells recognize such complexes with the help of their T cell receptors (TCRs).
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Chapter 15 Solutions
Nester's Microbiology: A Human Perspective
Ch. 15 - Prob. 1SACh. 15 - Prob. 2SACh. 15 - Prob. 3SACh. 15 - Which antibody class is the first produced during...Ch. 15 - Prob. 5SACh. 15 - Prob. 6SACh. 15 - Prob. 7SACh. 15 - Prob. 8SACh. 15 - Prob. 9SACh. 15 - Prob. 10SA
Ch. 15 - Prob. 1MCCh. 15 - Prob. 2MCCh. 15 - Prob. 3MCCh. 15 - A person who has been vaccinated against a disease...Ch. 15 - Prob. 5MCCh. 15 -
6. Which term describes the loss of specific...Ch. 15 - Which of the following specifically refers to an...Ch. 15 - Which markers are found on all nucleated cells? a)...Ch. 15 -
9. Which of the following are examples of an...Ch. 15 -
10. Which is an appropriate response if an...Ch. 15 -
1. Many daily operations keep cow's milk for sale...Ch. 15 - What kinds of diseases would be expected to occur...Ch. 15 -
1. The development of primary and secondary...Ch. 15 - Prob. 2CT
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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.arrow_forwardWith 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_forwardWith 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_forward
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