Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Chapter 1, Problem 5Q
Summary Introduction
To identify:
The biological basis behind the advisory to boil water before ingesting, also identify the way in which this procedure minimizes the illness.
Introduction:
Water is a clear, tasteless liquid which is essential for most plants and animals. Water is used on a daily basis for different purposes such as drinking, washing, cleaning, irrigation and so on. Nowadays, water is contaminated, usually by the human activity. The household wastes and industrial effluent are the major cause for the contamination of water.
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Chapter 1 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 1.1 - List the various types of microorganisms that can...Ch. 1.1 - Describe the role and impact of microbes on the...Ch. 1.1 - Explain the theory of evolution and why it is...Ch. 1.1 - Explain the ways that humans manipulate organisms...Ch. 1.1 - Summarize the relative burden of human disease...Ch. 1.1 - Differentiate among bacteria, archaea, and...Ch. 1.1 - Identify an acellular infectious agent that is...Ch. 1.1 - Compare and contrast the relative sizes of the...Ch. 1.1 - Q.Can you think of a logical reason that a microbe...Ch. 1.1 - NCLEX PREP 1. For which of the following disease...
Ch. 1.2 - Make a time line of the development of...Ch. 1.2 - List some recent microbiology discoveries of great...Ch. 1.2 - Identify the important features of the scientific...Ch. 1.3 - Name the four main families of biochemicals.Ch. 1.3 - Provide examples of cell components made from each...Ch. 1.3 - Differentiate among primary, secondary, tertiary,...Ch. 1.3 - List the three components of a nucleotide.Ch. 1.3 - Name the three nitrogen bases of DNA and RNA.Ch. 1.3 - Prob. 17AYPCh. 1.3 - Recall three characteristics common to all cells.Ch. 1.3 - Q. Use context in the paragraph above to deduce...Ch. 1.3 - Prob. 2NPCh. 1.4 - Differentiate among the terms nomenclature,...Ch. 1.4 - Create a mnemonic device for remembering the...Ch. 1.4 - Correctly write the binomial name for a...Ch. 1.4 - Draw a diagram of the three major domains.Ch. 1.4 - Explain the difference between traditional and...Ch. 1 - Prob. 1QCh. 1 - Name six types of microorganisms that we are...Ch. 1 - Defend the argument that a web of life is a more...Ch. 1 - Which of the following is a macromolecule that...Ch. 1 - Prob. 5QCh. 1 - Imagine a way you might design a drug to destroy...Ch. 1 - Prob. 7QCh. 1 - Provide an argument about why metabolic...Ch. 1 - Provide a possible interpretation of the finding...Ch. 1 - DNA leads to RNA which can lead to the creation of...Ch. 1 - Compare and contrast the RNA molecule with the DNA...Ch. 1 - Suggest an argument for why eukaryotic cells have...Ch. 1 - Prob. 13QCh. 1 - Defend or refute this statement: Microbes intend...Ch. 1 - Coevolution is a term describing the influence...Ch. 1 - Which of the following processes can be the result...Ch. 1 - Speculate about why scientists believe there are...Ch. 1 - Prob. 18QCh. 1 - When a hypothesis has been thoroughly supported by...Ch. 1 - Defend the use of complicated-sounding names for...Ch. 1 - Identify the most important component of the...Ch. 1 - Figure 1.2 Look at the red bat (the time that...
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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.arrow_forwardWith 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_forwardWith 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_forward
- Which 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_forwardDuring a routine medical check up of a healthy man it was found that his haematocrit value was highly unusual – value of 60%. What one of the options below is the most likely reason? He will have a diet high in iron. He is likely to be suffering from anaemia. He lives at high altitude. He has recently recovered from an accident where he lost a lot of blood. He has a very large body size.arrow_forward
- Explain what age of culture is most likely to produce an endospore?arrow_forwardExplain why hot temperatures greater than 45 degrees celsius would not initiate the sporulation process in endospores?arrow_forwardEndospore stain: Consider tube 2 of the 7-day bacillus culture. After is was heated, it was incubated for 24 hours then refrigerated. Do you think the cloudiness in this tube is due mostly to vegetative cells or to endospores? Explain your reasoningarrow_forward
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