ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,
4th Edition
ISBN: 9781265761493
Author: McKinley
Publisher: MCG
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Chapter 18, Problem 2CAL
Summary Introduction
Introduction:
Platelet which is also called as thrombocytes is the membrane bound cell fragments. They do not have nucleus are not considered as true cells. The main function of platelets is in maintaining the balance in erythrocyte numbers in blood by hemostasis. It is a process by which bleeding is stopped by clotting at the time of injury or cut.
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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 18 Solutions
ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,
Ch. 18.1 - Prob. 1WDYLCh. 18.1 - How does blood help regulate body temperature and...Ch. 18.1 - Will blood be able to properly carry out its...Ch. 18.1 - Prob. 4WDYLCh. 18.1 - Prob. 5WDYLCh. 18.2 - Prob. 6WDYLCh. 18.2 - Prob. 7WDYLCh. 18.2 - Prob. 8WDYLCh. 18.3 - What are the two main types of precursor cells for...Ch. 18.3 - Prob. 10WDYL
Ch. 18.3 - Prob. 11WDYLCh. 18.3 - Prob. 12WDYLCh. 18.3 - Prob. 13WDYLCh. 18.3 - Prob. 14WDYLCh. 18.3 - Prob. 15WDYLCh. 18.3 - Describe the process of erythropoiesis, beginning...Ch. 18.4 - Prob. 17WDYLCh. 18.4 - Prob. 18WDYLCh. 18.4 - Prob. 19WDYLCh. 18.4 - Prob. 20WDYLCh. 18.4 - At what point in blood loss is the sympathetic...Ch. 18.4 - Prob. 22WDYLCh. 18.5 - Prob. 23WDYLCh. 18.5 - Prob. 24WDYLCh. 18 - Prob. 1DYKBCh. 18 - _____ 2. Which type of leukocyte increases during...Ch. 18 - Prob. 3DYKBCh. 18 - Prob. 4DYKBCh. 18 - Prob. 5DYKBCh. 18 - Prob. 6DYKBCh. 18 - Prob. 7DYKBCh. 18 - _____ 8. During the recycling of components...Ch. 18 - _____ 9. The extrinsic pathway of coagulation is...Ch. 18 - Prob. 10DYKBCh. 18 - How does blood help regulate body temperature?Ch. 18 - What are alpha- and beta-globulins? What do they...Ch. 18 - When blood is centrifuged, a thin, whitish-gray...Ch. 18 - What is the shape of an erythrocyte, and why is...Ch. 18 - How are respiratory gases (oxygen and carbon...Ch. 18 - What are the anatomic characteristics of each type...Ch. 18 - How do the functions of basophils differ from...Ch. 18 - Briefly describe the origin, structure, and...Ch. 18 - Prob. 19DYKBCh. 18 - Describe the three phases of hemostasis, and list...Ch. 18 - Use the following paragraph to answer questions...Ch. 18 - Prob. 2CALCh. 18 - Which sequence or pathway best describes the...Ch. 18 - Prob. 4CALCh. 18 - Prob. 5CALCh. 18 - While taking a clinical laboratory class, Marilyn...Ch. 18 - Abby is a nurse on duty in a hospital emergency...Ch. 18 - Prob. 3CSL
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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-haemoglobinarrow_forwardWhich 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.arrow_forwardWhich 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.arrow_forward
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