EBK HUMAN PHYSIOLOGY
15th Edition
ISBN: 9781260163049
Author: Fox
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 20, Problem 4aCP
Summary Introduction
To review:
The following:
1. The mechanisms involved in the rise of sex steroid secretion occurring at puberty.
2. The probable effects of fat and intense exercise at the time of puberty.
Introduction:
Puberty is the time when males and females attain sexual maturity. The body shows different signs in both males and females. Females develop secondary sexual characters such as breast development and menstruation while the males experience muscle growth, facial hair development, and the voice becomes heavier.
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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 20 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 20 - Define the terms diploid and haploid, and explain...Ch. 20 - Explain how the chromosomal sex determines whether...Ch. 20 - List the male and female accessory sex organs and...Ch. 20 - Describe the abnormalities characteristic of...Ch. 20 - Prob. 3aCPCh. 20 - Prob. 3bCPCh. 20 - Prob. 4aCPCh. 20 - Prob. 4bCPCh. 20 - Prob. 4cCPCh. 20 - Prob. 5aCP
Ch. 20 - Prob. 5bCPCh. 20 - Prob. 6aCPCh. 20 - Prob. 6bCPCh. 20 - Describe the roles of FSH and testosterone in...Ch. 20 - Prob. 8aCPCh. 20 - Prob. 8bCPCh. 20 - Prob. 9aCPCh. 20 - Prob. 9bCPCh. 20 - Describe the changes that occur in the ovary and...Ch. 20 - Describe the formation, function, and fate of the...Ch. 20 - Prob. 11aCPCh. 20 - Explain the significance of negative feedback...Ch. 20 - Prob. 12aCPCh. 20 - Prob. 12bCPCh. 20 - List the fetal and maternal components of the...Ch. 20 - Prob. 13bCPCh. 20 - Prob. 14CPCh. 20 - Prob. 15CPCh. 20 - Prob. 1RACh. 20 - Prob. 2RACh. 20 - Prob. 3RACh. 20 - Prob. 4RACh. 20 - Prob. 5RACh. 20 - Prob. 6RACh. 20 - Prob. 7RACh. 20 - Prob. 8RACh. 20 - Which of these statements is true?
Ch. 20 - Prob. 10RACh. 20 - Prob. 11RACh. 20 - Prob. 12RACh. 20 - Prob. 13RACh. 20 - Prob. 14RACh. 20 - Prob. 15RACh. 20 - The contents of the birth control pill
Ch. 20 - Which of the following statements regarding...Ch. 20 - Prob. 18RACh. 20 - Prob. 19RACh. 20 - Prob. 20RACh. 20 - Prob. 21RACh. 20 - Prob. 22RACh. 20 - Prob. 23RACh. 20 - Prob. 24RACh. 20 - Prob. 25RACh. 20 - Prob. 26RACh. 20 - Prob. 27RACh. 20 - Describe the steps of oogenesis when fertilization...Ch. 20 - Prob. 29RACh. 20 - Prob. 30RACh. 20 - Prob. 31RACh. 20 - Prob. 32RACh. 20 - Prob. 33RACh. 20 - Prob. 34RACh. 20 - Prob. 35RACh. 20 - Prob. 36RACh. 20 - Prob. 37RACh. 20 - Prob. 38RACh. 20 - Prob. 39RACh. 20 - Prob. 40RACh. 20 - Prob. 41RACh. 20 - Prob. 42RACh. 20 - Prob. 43RACh. 20 - Prob. 44RA
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