
EP PRINCIPLES OF HUM.PHYS.-MOD.MAST.A+P
6th Edition
ISBN: 9780134407166
Author: STANFIELD
Publisher: PEARSON CO
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Chapter 5, Problem 21E
Summary Introduction
Introduction:
The amino acids help transmit signals from the brain to different parts of the body. They carry the messages from one part to another, hence, they are a type of chemical messengers.
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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 5 Solutions
EP PRINCIPLES OF HUM.PHYS.-MOD.MAST.A+P
Ch. 5.1 - Name the three functional classes of messengers....Ch. 5.1 - Prob. 5.1.2QCCh. 5.1 - Prob. 5.1.3QCCh. 5.2 - How does inhibiting enzymes prevent the sensation...Ch. 5.2 - What negative effects do elevated doses of aspirin...Ch. 5.2 - Prob. 3CTQCh. 5.2 - Prob. 5.2.1QCCh. 5.2 - Prob. 5.2.2QCCh. 5.2 - Prob. 5.2.3QCCh. 5.3 - Prob. 1CTQ
Ch. 5.3 - Prob. 2CTQCh. 5.3 - Prob. 3CTQCh. 5.3 - Where in the target cell are the receptors for...Ch. 5.3 - Name the three categories of membrane-bound...Ch. 5.3 - Name five substances that act as second...Ch. 5 - Prob. 1ECh. 5 -
Epinephrine is a(n)
a. Amino acid.
b....Ch. 5 - Prob. 3ECh. 5 - Prob. 4ECh. 5 - Prob. 5ECh. 5 -
Which of the following is likely to cause an...Ch. 5 -
Which of the following messenger classes bind to...Ch. 5 - Prob. 8ECh. 5 -
G proteins are involved whenever
Binding of...Ch. 5 - Prob. 10ECh. 5 - Prob. 11ECh. 5 - Prob. 12ECh. 5 - Prob. 13ECh. 5 -
When a G protein is activated, it releases a...Ch. 5 -
The enzyme that catalyzes conversion of ATP to...Ch. 5 -
Following activation of the phosphatidylinositol...Ch. 5 - Prob. 17ECh. 5 - Prob. 18ECh. 5 - Cytosolic calcium often exerts its effect by...Ch. 5 - Prob. 20ECh. 5 - Prob. 21ECh. 5 - Prob. 22ECh. 5 - Prob. 23ECh. 5 - Compare lipophilic and lipophobic chemical...Ch. 5 - Prob. 25ECh. 5 -
Describe the cAMP second messenger system,...Ch. 5 - Compare long-distance communication by the nervous...Ch. 5 -
Describe the two types of receptor- mediated...Ch. 5 - Prob. 29ECh. 5 - Prob. 30ECh. 5 - Prob. 31ECh. 5 - Prob. 32ECh. 5 - Prob. 33E
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