EBK BIOLOGY
11th Edition
ISBN: 8220106820636
Author: Martin
Publisher: CENGAGE L
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Chapter 1.6, Problem 9LO
Summary Introduction
To apply: The concept of natural selection to any given adaptation and a logical explanation of how the adaptation may have evolved.
Concept introduction: Natural selection is the cause of evolutionary change that promotes adaptation. Natural selection selects the best fit individuals in the population to survive in order to propagate their genes to the next generation. The weak individuals of the population are eliminated.
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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 1 Solutions
EBK BIOLOGY
Ch. 1.1 - Describe five basic themes of biology.Ch. 1.1 - Why are information transmission, energy transfer,...Ch. 1.1 - CONNECT What are some ways in which an organism is...Ch. 1.2 - Prob. 2LOCh. 1.2 - Prob. 1CCh. 1.2 - Predict What would be the consequences to an...Ch. 1.3 - Prob. 3LOCh. 1.3 - What are the levels of organization within an...Ch. 1.3 - PREDICT At which level do you think more...Ch. 1.4 - Summarize the importance of information transfer...
Ch. 1.4 - What is the function of DNA?Ch. 1.4 - How does a nervous system transmit information?Ch. 1.5 - Summarize the flow of energy through ecosystems...Ch. 1.5 - Predict What components do you think a forest...Ch. 1.5 - Connect In what ways do consumers depend on...Ch. 1.6 - Demonstrate the binomial system of nomenclature by...Ch. 1.6 - Prob. 7LOCh. 1.6 - Prob. 8LOCh. 1.6 - Prob. 9LOCh. 1.6 - The scientific name for the African rock python is...Ch. 1.6 - Prob. 2CCh. 1.6 - How might you explain the sharp claws and teeth of...Ch. 1.7 - Design a study to test a given hypothesis, using...Ch. 1.7 - Compare the reductionist and systems approaches to...Ch. 1.7 - What are the characteristics of a good hypothesis?Ch. 1.7 - Prob. 2CCh. 1.7 - CONNECT In what ways does systems biology depend...Ch. 1 - Prob. 1TYUCh. 1 - Prob. 2TYUCh. 1 - Prob. 3TYUCh. 1 - Fungi are assigned to domain (a) Protista (b)...Ch. 1 - The scientific name for corn is Zea mays. Zea is...Ch. 1 - Darwin suggested that evolution takes place by (a)...Ch. 1 - Ideally, an experimental group differs from a...Ch. 1 - Prob. 8TYUCh. 1 - VISUALIZE Draw a simple cladogram illustrating the...Ch. 1 - predict What would happen if a homeostatic...Ch. 1 - What are some characteristics of a good...Ch. 1 - PREDICT Make a prediction and devise a suitably...Ch. 1 - Prob. 13TYUCh. 1 - INTERPRET DATA Compare the two graphs in Figure...Ch. 1 - Evolution Link In what ways does evolution depend...Ch. 1 - EVOLUTION LINK How might an understanding of...Ch. 1 - SCIENCE, TECHNOLOGY, AND SOCIETY In the future,...
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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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