ANAT.+PHYS.LAB MANUAL-W/ACCESS >CUSTOM<
ANAT.+PHYS.LAB MANUAL-W/ACCESS >CUSTOM<
9th Edition
ISBN: 9781265357948
Author: SALADIN
Publisher: MCG CUSTOM
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Chapter 12.4, Problem 15BYGO
Summary Introduction

Introduction:

An action potential is an electrical impulse used for passing the signal between the nerve cell and muscle cell. It occurs only when there is a high density of ion channels. The pathway of action potential begins at the axon and trigger zone. Action potential begins always with depolarization, whereas local potential begins with depolarization or hyperpolarization. Action potential has a greater effect of long distance from the origin point as it is self-propagating; signal strength is maintained irrespective of the distance.

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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 12 Solutions

ANAT.+PHYS.LAB MANUAL-W/ACCESS >CUSTOM<

Ch. 12.2 - Prob. 7BYGOCh. 12.2 - Three fundamental physiological properties of...Ch. 12.2 - Prob. 2AYLOCh. 12.2 - Prob. 3AYLOCh. 12.2 - Prob. 4AYLOCh. 12.2 - Ways in winch neurons transport substances between...Ch. 12.3 - Prob. 8BYGOCh. 12.3 - Prob. 9BYGOCh. 12.3 - Prob. 10BYGOCh. 12.3 - Six kinds of neuroglia; the structure and...Ch. 12.3 - Prob. 2AYLOCh. 12.3 - Prob. 3AYLOCh. 12.3 - The regeneration of a damaged nerve fiber; the...Ch. 12.4 - Prob. 11BYGOCh. 12.4 - Prob. 12BYGOCh. 12.4 - Prob. 13BYGOCh. 12.4 - Prob. 14BYGOCh. 12.4 - Prob. 15BYGOCh. 12.4 - Prob. 16BYGOCh. 12.4 - Prob. 17BYGOCh. 12.4 - Prob. 1AYLOCh. 12.4 - What an electrical current is, and how sodium ions...Ch. 12.4 - How stimulation of a neuron generates a local...Ch. 12.4 - Prob. 4AYLOCh. 12.4 - Prob. 5AYLOCh. 12.4 - Prob. 6AYLOCh. 12.4 - Prob. 7AYLOCh. 12.4 - How one action potential triggers another; how the...Ch. 12.4 - Saltatory conduction in a myelinated nerve fiber,...Ch. 12.5 - Prob. 18BYGOCh. 12.5 - Prob. 19BYGOCh. 12.5 - Prob. 20BYGOCh. 12.5 - Prob. 21BYGOCh. 12.5 - Prob. 1AYLOCh. 12.5 - Prob. 2AYLOCh. 12.5 - Prob. 3AYLOCh. 12.5 - Prob. 4AYLOCh. 12.5 - Excitatory synapses; how acetylcholine and...Ch. 12.5 - Prob. 6AYLOCh. 12.5 - Prob. 7AYLOCh. 12.5 - Prob. 8AYLOCh. 12.5 - Prob. 9AYLOCh. 12.6 - Prob. 22BYGOCh. 12.6 - Prob. 23BYGOCh. 12.6 - Prob. 24BYGOCh. 12.6 - Contrast serial and parallel processing and...Ch. 12.6 - Prob. 26BYGOCh. 12.6 - Explain how long-term potentiation and long-term...Ch. 12.6 - Prob. 1AYLOCh. 12.6 - Prob. 2AYLOCh. 12.6 - Prob. 3AYLOCh. 12.6 - How a postsynaptic neurons decision to fire...Ch. 12.6 - Prob. 5AYLOCh. 12.6 - Mechanisms of presynaptic facilitation and...Ch. 12.6 - Prob. 7AYLOCh. 12.6 - Prob. 8AYLOCh. 12.6 - The meanings of neural pool and neural circuitCh. 12.6 - The difference between a neurons discharge zone...Ch. 12.6 - Diverging, converging, reverberating, and parallel...Ch. 12.6 - The difference between serial and parallel...Ch. 12.6 - The cellular basis of memory; what memory consists...Ch. 12.6 - Prob. 14AYLOCh. 12.6 - Prob. 15AYLOCh. 12 - The integrative functions of the nervous system...Ch. 12 - The highest density of voltage-gated ion channels...Ch. 12 - The soma of a mature neuron lacks a. a nucleus. b....Ch. 12 - The glial cells that fight infections in the CNS...Ch. 12 - Posttetanic potentiation of a synapse increases...Ch. 12 - An IPSP is_____of the postsynaptic neuron. a. a...Ch. 12 - Prob. 7TYRCh. 12 - Prob. 8TYRCh. 12 - Prob. 9TYRCh. 12 - Prob. 10TYRCh. 12 - Prob. 11TYRCh. 12 - Prob. 12TYRCh. 12 - Prob. 13TYRCh. 12 - Prob. 14TYRCh. 12 - Prob. 15TYRCh. 12 - A myelinated nerve fiber can produce action...Ch. 12 - Prob. 17TYRCh. 12 - Prob. 18TYRCh. 12 - Prob. 19TYRCh. 12 - Prob. 20TYRCh. 12 - Prob. 1BYMVCh. 12 - Prob. 2BYMVCh. 12 - Prob. 3BYMVCh. 12 - Prob. 4BYMVCh. 12 - Prob. 5BYMVCh. 12 - Prob. 6BYMVCh. 12 - Prob. 7BYMVCh. 12 - Prob. 8BYMVCh. 12 - Prob. 9BYMVCh. 12 - Prob. 10BYMVCh. 12 - Prob. 1WWTSCh. 12 - Prob. 2WWTSCh. 12 - Prob. 3WWTSCh. 12 - Prob. 4WWTSCh. 12 - Excitatory postsynaptic potentials lower the...Ch. 12 - Prob. 6WWTSCh. 12 - Prob. 7WWTSCh. 12 - Myelinated nerve fibers conduct signals more...Ch. 12 - Prob. 9WWTSCh. 12 - Prob. 10WWTSCh. 12 - Schizophrenia is sometimes treated with drugs such...Ch. 12 - Hyperkalemia is an excess of potassium ill the...Ch. 12 - Suppose a poison were to slow down the Na+-K+...Ch. 12 - Prob. 4TYCCh. 12 - Prob. 5TYC
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