Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 40.1, Problem 1TYK
Summary Introduction
Introduction:
A pathogen is one such organism that depends on another organism-host to reproduce. Pathogens that are non-living and depend on external organism-hosts are ‘Viruses’. These have proteins,
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Which form of viral infection is described by this example?
Long-term human papillomavirus (HPV) infection, during which a
person shows few symptoms but is constantly producing low
numbers of infective viral particles and can transmit the disease.
Latent infection
Persistent infection
Acute infection
Which of the following is not considered a cause of major epidemic diseases?
Prions
Bacteria
Parasites
Viruses
Fungi
Which one of the following is not true for virus, obligate intracellular parasites?
Viruses cannot generate energy outside of cells
Viruses cannot synthesize proteins outside of cells
Enveloped viruses require host cell membrane to obtain their envelopes
Viruses must degrade host cell DNA in order to obtain nucleotides
Chapter 40 Solutions
Principles of Biology
Ch. 40.1 - Prob. 1TYKCh. 40.1 - Prob. 2TYKCh. 40.2 - Prob. 1BCCh. 40.2 - Inflammation is often associated with swelling of...Ch. 40.2 - Prob. 1TYKCh. 40.2 - Prob. 2TYKCh. 40.3 - Prob. 1CCCh. 40.3 - Prob. 2CCCh. 40.3 - Prob. 3CCCh. 40.3 - Prob. 4CC
Ch. 40.3 - Prob. 1TYKCh. 40.3 - Prob. 2TYKCh. 40.4 - Prob. 1TYKCh. 40.4 - Prob. 2TYKCh. 40 - Prob. 1TYCh. 40 - Prob. 2TYCh. 40 - Prob. 3TYCh. 40 - Prob. 4TYCh. 40 - Prob. 5TYCh. 40 - Prob. 6TYCh. 40 - Prob. 7TYCh. 40 - Prob. 8TYCh. 40 - Prob. 9TYCh. 40 - Prob. 10TYCh. 40 - Prob. 1CCQCh. 40 - Prob. 2CCQCh. 40 - Prob. 3CCQCh. 40 - Prob. 1CBQCh. 40 - Prob. 2CBQ
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- What are the microbes called which colonize our bodies and actually help us to survive by aiding digestion or guarding against infection. vectors normal flora pathogens fomitesarrow_forwardWhich organism is least likely to cause disease? bacteria protozoa algae parasitic worms virusesarrow_forwardA nosocomial infection can be caused by one's own normal flora due to a compromised immune system can result from surgical wounds Ois acquired from a health care environment all of the abovearrow_forward
- Which of the following is an example of a noncommunicable infectious disease? infection with a respiratory virus food poisoning due to a preformed bacterial toxin in food skin infection acquired from a dog bite infection acquired from the stick of a contaminated needlearrow_forwardA female Anopheles mosquito comes in contact with a person's skin and probes it with its proboscis. This now has the potential to infect the person with malaria. What type of transmission is involved in the process?Airborne transmission Mechanical transmission Direct contact transmission Biological transmissionarrow_forwardThe Germ Theory of disease holds that transmissible diseases are caused by what agents? Oncogenes Miasmas Microbes Toxinsarrow_forward
- Viruses are obligate intracellular parasites. Rubella is also known as Exanthem subitum * FIRST statement is TRUE; SECOND statement is FALSE BOTH Statements are TRUE FIRST statement is FALSE; SECOND statement is TRUE BOTH statements are FALSEarrow_forwardAll prions have which components in their infectious particles? Nucleic acids and proteins Proteins only Internal organelles Nucleic acids, proteins, and membranesarrow_forwardLice are small wingless insects that make their home in human hair and feed on very small amounts of blood from the scalp. They can be transferred from person to person and through the use of contaminated items such as brushes or pillows. Which type of disease is lice infestation? communicable noncommunicable genetic lifestylearrow_forward
- The term "colonization" is best described as: a large group of unicellular organisms presence of bacteria on our body that may not necessarily cause harm a virus that will colonize bacteria and make the disease more virulent all of the abovearrow_forwardWhich of the following can be pathogens? (choose all that apply) Viruses Protists Parasitic worms Fungi Bacteriaarrow_forwardWhich of the following is a pyrimidine (one type of nitrogenous base) that is commonly found in all DNA molecules, but is not commonly found in all RNA molecules? adenosine cytidine thymine guanine uracil If retroviruses like HIV follow the historical pattern of a parasite adapting to a new host species (like syphilis in Europe over the past 500 years), then rapid virulence initially would likely be followed by: increasing virulence of the parasite, and decreasing resistance of the host increasing virulence of the parasite, and increasing resistance of the host decreasing virulence of the parasite, and decreasing resistance of the host decreasing virulence of the parasite, and increasing resistance of the host all of the above outcomes would be equally likelyarrow_forward
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