Seeley's Anatomy & Physiology
12th Edition
ISBN: 9781260399127
Author: VanPutte, Cinnamon
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 18, Problem 5CT
Summary Introduction
To determine:
The reason for Julie’s condition and the treatments that can be recommended.
Introduction:
Julie has gained weight over the past year and feels weak. The blood test results indicate increased levels of cortisol and ACTH (adrenocorticotropic hormone) in the blood. However, the results do not indicate any extrapituitary source of the hormone ACTH.
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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
Seeley's Anatomy & Physiology
Ch. 18.1 - Prob. 1AYPCh. 18.1 - Prob. 2AYPCh. 18.2 - Prob. 3AYPCh. 18.2 - Prob. 4AYPCh. 18.2 - How does the hypothalamus regulate the secretion...Ch. 18.2 - Prob. 6AYPCh. 18.2 - Prob. 7AYPCh. 18.2 - Prob. 8AYPCh. 18.2 - Prob. 9AYPCh. 18.2 - Prob. 10AYP
Ch. 18.2 - Prob. 11AYPCh. 18.2 - Prob. 12AYPCh. 18.2 - Prob. 13AYPCh. 18.2 - What effects do stress, blood amino acid levels,...Ch. 18.2 - Describe the effects of GH on its target tissues.Ch. 18.2 - Prob. 16AYPCh. 18.2 - Prob. 17AYPCh. 18.2 - Prob. 18AYPCh. 18.2 - For each of the following hormones secreted by the...Ch. 18.2 - Prob. 20AYPCh. 18.2 - What is a gonadotropin? Name two...Ch. 18.3 - Prob. 22AYPCh. 18.3 - Prob. 23AYPCh. 18.3 - How are the thyroid hormones transported in the...Ch. 18.3 - Prob. 25AYPCh. 18.3 - Starting in the hypothalamus, explain how chronic...Ch. 18.3 - Prob. 27AYPCh. 18.3 - Prob. 28AYPCh. 18.3 - Prob. 29AYPCh. 18.3 - What conditions cause hyperthyroidism? Describe...Ch. 18.3 - Prob. 31AYPCh. 18.4 - Prob. 32AYPCh. 18.4 - Prob. 33AYPCh. 18.4 - Prob. 34AYPCh. 18.4 - Prob. 35AYPCh. 18.4 - What can cause hypoparathyroidism?Describe the...Ch. 18.4 - Prob. 37AYPCh. 18.5 - Where are the adrenal glands located? Describe the...Ch. 18.5 - Name two hormones secreted by the adrenal medulla,...Ch. 18.5 - Prob. 40AYPCh. 18.5 - Prob. 41AYPCh. 18.5 - Name the target tissue ofaldosterone, and list...Ch. 18.5 - Prob. 43AYPCh. 18.5 - Prob. 44AYPCh. 18.5 - List the possible causes of hypersecretion of...Ch. 18.5 - Prob. 46AYPCh. 18.6 - Prob. 47AYPCh. 18.6 - Prob. 48AYPCh. 18.6 - How does insulin affect the satiety center of the...Ch. 18.6 - Prob. 50AYPCh. 18.6 - Prob. 51AYPCh. 18.7 - Prob. 52AYPCh. 18.7 - Prob. 53AYPCh. 18.7 - Prob. 54AYPCh. 18.8 - Prob. 55AYPCh. 18.8 - List the hormones secreted by the ovaries, and...Ch. 18.8 - What hormones from the anterior pituitary gland...Ch. 18.8 - Prob. 58AYPCh. 18.9 - Prob. 59AYPCh. 18.9 - Prob. 60AYPCh. 18.10 - What hormone is secreted by the thymus? What is...Ch. 18.10 - Prob. 62AYPCh. 18.10 - Prob. 63AYPCh. 18.10 - Prob. 64AYPCh. 18.10 - List examples of paracrine chemical messengers...Ch. 18.10 - Prob. 66AYPCh. 18.11 - Prob. 67AYPCh. 18.11 - Prob. 68AYPCh. 18 - The pituitary gland a. develops from the floor of...Ch. 18 - The hypothalamohypophysial portal system a....Ch. 18 - Prob. 3RACCh. 18 - Prob. 4RACCh. 18 - Prob. 5RACCh. 18 - Prob. 6RACCh. 18 - Prob. 7RACCh. 18 - Hypersecretion of growth hormone a.results in...Ch. 18 - Prob. 9RACCh. 18 - Prob. 10RACCh. 18 - Prob. 11RACCh. 18 - Prob. 12RACCh. 18 - Prob. 13RACCh. 18 - Parathyroid hormone secretion increases in...Ch. 18 - Prob. 15RACCh. 18 - Prob. 16RACCh. 18 - In the condition in which a benign tumor results...Ch. 18 - Which of these is nor a hormone secreted by the...Ch. 18 - Prob. 19RACCh. 18 - Prob. 20RACCh. 18 - Prob. 21RACCh. 18 - Within the pancreas, the pancreatic islets produce...Ch. 18 - Insulin increases a. the uptake of glucose by its...Ch. 18 - Prob. 24RACCh. 18 - Prob. 25RACCh. 18 - Prob. 26RACCh. 18 - Prob. 27RACCh. 18 - Prob. 28RACCh. 18 - Prob. 29RACCh. 18 - Prob. 30RACCh. 18 - Prob. 1CTCh. 18 - Prob. 2CTCh. 18 - A patient complains of headaches and visual...Ch. 18 - Prob. 4CTCh. 18 - Prob. 5CTCh. 18 - Prob. 6CTCh. 18 - Prob. 7CTCh. 18 - Predict some of the consequences of exposure to...Ch. 18 - Katie was getting nervous. At 16, she was the only...
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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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