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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What are the microbes called which colonize our bodies and actually help us to survive by aiding digestion or guarding against infection.
vectors
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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 above
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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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- A pandemic is an outbreak of a disease occurring over a large geographic area, possibly worldwide. ___________ ____________ ___________ __________arrow_forward______ are barriers to pathogens at body surfaces. a. Intact skin and mucous membranes b. Tears, saliva, and gastric fluid c. Resident bacteria d. All are correctarrow_forwardWhich 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_forward
- Which of the following is NOT a true statement? Infected people without symptoms can sometimes transmit their infection to others None of the other four answers (All are true statements) Infectious diseases are still one of the leading causes of death in some parts of the world For a given microbe, the number of cells or virus particles required to cause an infection (ID50) is always the same, regardless of the portal of entry Zoonoses can spread from animals to humansarrow_forwardWhich 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 nucleotidesarrow_forwardAn infectious disease is a disease that is caused when a pathogen is passed from one organism to another. The nonliving pathogen is the a) Parasites b) Bacteria c) Virus d) Protozoa Please I need a surely answer and a quicker responsearrow_forward
- Why are viruses NOT considered living organisms? They are not composed of cells They cannot reproduce on their own They have no nucleus all of the abovearrow_forwardThe attachment of a pathogen to host cells requires that Group of answer choices pathogen adhesins bind specifically to host glycoproteins. host antibodies attach to the pathogen adhesins. the resident microbiota be unbalanced. pathogen toxins enter the cell by endocytosis.arrow_forwardYou can choose one or more than one option Viruses: can be produced inside the cytosol. can be pathogenic infectious agents is a specific type of living cells are made of lipids and proteins without carbohydrates and nucleic acids belong to Prokaryotesarrow_forward
- The illustration best describes: A dormant bacterial infection A dormant viral infection An active bacterial infection An active viral infectionarrow_forwardAll viruses have which components in their infectious particles? Nucleic acids and protein coats Nucleic acids, protein coats, and membranes Nucleic acids, protein coats, and ribosomes Protein coats onlyarrow_forwardThe reason that influenza infection is more dangerous than the common cold is because ___. the antigen of the cold microbe mutates but influenza antigen remains constant the flu can infect the lungs, the cold rarely infects any deeper than the trachea influenza has a food borne route of infection, while the cold has a direct contact route flu cannot be controlled by antibiotics but the cold can bearrow_forward
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