Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Chapter 1.5, Problem 11CYP
Summary Introduction
To analyse:
- The difference between a hypothesis and a theory.
- The meaning of ‘a scientific explanation being only a theory’.
Introduction:
In order to answer a question or to explain a phenomenon, scientists use a scientific method whereby they choose the deductive reasoning approach or the inductive reasoning approach. Once they have an explanation for the phenomenon, they start testing it and check if it is true or false. If it stands the test of time and passes all tests, then it is given a universal acceptance.
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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
Foundations in Microbiology
Ch. 1.1 - Define microbiology and microorganisms, and...Ch. 1.1 - Name and define the primary fields included in...Ch. 1.1 - Define what is meant by the term microorganism and...Ch. 1.1 - Describe five different ways in which humans...Ch. 1.2 - Prob. 3ELOCh. 1.2 - Prob. 4ELOCh. 1.2 - Prob. 5ELOCh. 1.2 - Prob. 3CYPCh. 1.2 - Observe figure 1.3 and place the microbes pictured...Ch. 1.2 - Prob. 5CYP
Ch. 1.2 - Prob. 6CYPCh. 1.3 - Prob. 6ELOCh. 1.3 - Describe several ways the beneficial qualities of...Ch. 1.4 - Prob. 7ELOCh. 1.4 - Prob. 8ELOCh. 1.4 - Prob. 8CYPCh. 1.4 - Prob. 9CYPCh. 1.5 - Prob. 9ELOCh. 1.5 - Prob. 10ELOCh. 1.5 - Prob. 10CYPCh. 1.5 - Prob. 11CYPCh. 1.5 - Prob. 12CYPCh. 1.5 - Why was the abandonment of the spontaneous...Ch. 1.6 - Define taxonomy and its supporting terms...Ch. 1.6 - Prob. 12ELOCh. 1.6 - Describe the goals of nomenclature and how the...Ch. 1.6 - Prob. 14CYPCh. 1.6 - Prob. 15CYPCh. 1.6 - Explain the binomial system of nomenclature and...Ch. 1.6 - Explain sonic of the benefits of using scientific...Ch. 1.7 - Prob. 14ELOCh. 1.7 - Explain the concepts behind the organization of...Ch. 1.7 - Explain the bases foe classification, taxonomy,...Ch. 1.7 - Prob. 17ELOCh. 1.7 - Prob. 18CYPCh. 1.7 - Prob. 19CYPCh. 1.7 - Prob. 20CYPCh. 1.7 - Archaea are often found living in extreme...Ch. 1.7 - Compare the domain system with the five-kingdom...Ch. 1.L1 - Which of the following is not considered a...Ch. 1.L1 - An area of microbiology that is concerned with the...Ch. 1.L1 - Which process involves the deliberate alteration...Ch. 1.L1 - A prominent difference between prokaryotic and...Ch. 1.L1 - Prob. 5MCQCh. 1.L1 - Abiogenesis refers to the a. spontaneous...Ch. 1.L1 - Prob. 7MCQCh. 1.L1 - Prob. 8MCQCh. 1.L1 - Which scientist is most responsible for finally...Ch. 1.L1 - Prob. 10MCQCh. 1.L1 - Prob. 11MCQCh. 1.L1 - Prob. 12MCQCh. 1.L1 - Prob. 13MCQCh. 1.L1 - Prob. 14MCQCh. 1.L1 - Prob. 15MCQCh. 1.L1 - Prob. 16MCQCh. 1.L1 - Many of the bacteria in Lake Whillans derive...Ch. 1.L1 - Prob. 2CSRCh. 1.L1 - Prob. 3CSRCh. 1.L1 - What does it mean to say microbes are ubiquitous?Ch. 1.L1 - Prob. 2WCCh. 1.L1 - What events, discoveries, or inventions were...Ch. 1.L1 - Prob. 4WCCh. 1.L1 - Explain how microbes arc classified into groups...Ch. 1.L1 - Prob. 6WCCh. 1.L2 - What do you suppose the world would be like if...Ch. 1.L2 - How would you describe the types of scientific...Ch. 1.L2 - Give the technical name of a microbiologist who...Ch. 1.L2 - Name the six most common infectious agents on...Ch. 1.L2 - Prob. 5CTCh. 1.L2 - Prob. 6CTCh. 1.L2 - Construct the scientific name of a newly...Ch. 1.L2 - Prob. 1VC
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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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