Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 19, Problem 12RA
Summary Introduction
To determine:
The purpose for which around 12% of the total calories are consumed in the resting state.
Introduction:
Body needs continuous input of energy. This is obtained in the form of food. Various constituents of food serve as energy sources. These constituents have varying amount of calories. A minimum calorie intake is essential in order to maintain the normal physiology of the body.
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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.
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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.
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 19 Solutions
Human Physiology
Ch. 19 - Explain how the metabolic rate is influenced by...Ch. 19 - Prob. 2aCPCh. 19 - Prob. 2bCPCh. 19 - Prob. 3CPCh. 19 - Distinguish between the energy reserves and...Ch. 19 - Prob. 5CPCh. 19 - Identify the brain regions involved in hunger and...Ch. 19 - Prob. 7CPCh. 19 - Describe how the secretions of insulin and...Ch. 19 - Prob. 8bCP
Ch. 19 - Define the following terms: glycogenolysis,...Ch. 19 - Prob. 9CPCh. 19 - Prob. 10aCPCh. 19 - Prob. 10bCPCh. 19 - Explain the meaning of the terms insulin...Ch. 19 - Prob. 12aCPCh. 19 - Prob. 12bCPCh. 19 - Prob. 13aCPCh. 19 - Prob. 13bCPCh. 19 - Describe the mechanisms by which the secretion of...Ch. 19 - Prob. 15aCPCh. 19 - Prob. 15bCPCh. 19 - Prob. 15cCPCh. 19 - ln questions 1-5, match the item to the correct...Ch. 19 - Prob. 2RACh. 19 - Prob. 3RACh. 19 - Prob. 4RACh. 19 - Prob. 5RACh. 19 - Prob. 6RACh. 19 - Prob. 7RACh. 19 - Prob. 8RACh. 19 - Prob. 9RACh. 19 - The increased intestinal absorption of calcium is...Ch. 19 - Prob. 11RACh. 19 - Prob. 12RACh. 19 - Prob. 13RACh. 19 - Prob. 14RACh. 19 - Prob. 15RACh. 19 - Prob. 16RACh. 19 - Prob. 17RACh. 19 - Prob. 18RACh. 19 - Prob. 19RACh. 19 - Prob. 20RACh. 19 - Prob. 21RACh. 19 - Prob. 22RACh. 19 - Prob. 23RACh. 19 - Prob. 24RACh. 19 - Prob. 25RACh. 19 - Prob. 26RACh. 19 - Prob. 27RACh. 19 - Describe the conditions of gigantism, acromegaly,...Ch. 19 - Describe how hormones secreted by the...Ch. 19 - Prob. 30RACh. 19 - Prob. 31RACh. 19 - Prob. 32RACh. 19 - Prob. 33RACh. 19 - Prob. 34RACh. 19 - Prob. 35RACh. 19 - Prob. 36RACh. 19 - Prob. 37RACh. 19 - Prob. 38RACh. 19 - Prob. 39RACh. 19 - Prob. 40RACh. 19 - Prob. 41RACh. 19 - Prob. 42RACh. 19 - Prob. 43RA
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