Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Textbook Question
Chapter 16, Problem 4RQ
Of the neurons in the retina, which form the optic nerve? (a) bipolar neurons, (b) ganglion neurons, (c) cone cells, (d) horizontal neurons.
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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 16 Solutions
Human Anatomy
Ch. 16 - Prob. 1CYUCh. 16 - What type of cell are the olfactory receptors?...Ch. 16 - Prob. 3CYUCh. 16 - What muscle is not functioning in a person whose...Ch. 16 - Prob. 5CYUCh. 16 - Prob. 6CYUCh. 16 - Prob. 7CYUCh. 16 - Prob. 8CYUCh. 16 - Prob. 9CYUCh. 16 - Prob. 10CYU
Ch. 16 - Prob. 11CYUCh. 16 - Prob. 12CYUCh. 16 - Prob. 13CYUCh. 16 - Which auditory ossicle abuts the tympanic...Ch. 16 - Prob. 15CYUCh. 16 - Prob. 16CYUCh. 16 - Prob. 17CYUCh. 16 - Prob. 18CYUCh. 16 - What type of deafness results from damage to the...Ch. 16 - Prob. 20CYUCh. 16 - What brain regions receive input from the...Ch. 16 - Prob. 1RQCh. 16 - Prob. 2RQCh. 16 - The transmission of sound vibrations through the...Ch. 16 - Of the neurons in the retina, which form the optic...Ch. 16 - Blocking the scleral venous sinus might result in...Ch. 16 - Conduction of sound from the middle ear to the...Ch. 16 - The structure that allows the air pressure in the...Ch. 16 - The receptors for static equilibrium that report...Ch. 16 - Paralysis of a medial rectus muscle would affect...Ch. 16 - Prob. 10RQCh. 16 - The optic disc is the site where (a) more rods...Ch. 16 - Prob. 12RQCh. 16 - Prob. 13RQCh. 16 - (a) What is the precise location of the olfactory...Ch. 16 - Prob. 15RQCh. 16 - Name two special senses whose receptor cells are...Ch. 16 - (a) Describe the embryonic derivation of the...Ch. 16 - Prob. 18RQCh. 16 - Prob. 19RQCh. 16 - Compare and contrast the functions of the interior...Ch. 16 - (a) What is the difference, if any, between a...Ch. 16 - Prob. 22RQCh. 16 - Prob. 1CRCAQCh. 16 - Prob. 2CRCAQCh. 16 - Dr. Nakvarati used an instrument to blow a puff of...Ch. 16 - Lionel suffered a ruptured artery in his middle...Ch. 16 - Prob. 5CRCAQCh. 16 - Prob. 6CRCAQCh. 16 - Prob. 7CRCAQ
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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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