Concept explainers
Introduction:
Food poisoning can be referred as food borne illness. It is caused by the intake of contaminated food. Bacteria, viruses, or their released toxins are the major cause of food poisoning.
Answer to Problem 1MC
Correct answer:
Staphylococcus aureus is associated with food poisoning. Therefore, option (c) is correct.
Option (c) is given as “Staphylococcus aureus”.
Explanation of Solution
Justify reasons for the correct statement:
Staphylococcus aureus is a gram positive bacterium, which is responsible for food borne diseases. Symptoms include severe vomiting, nausea, headache, diarrhoea, abdominal pain, and sweating. It usually enters the host through various contaminated food items and produces toxins responsible for causing food poisoning.
Hence, option (c) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “Streptococcus sanguis”.
Streptococcus sanguis is responsible for dental caries. They are also known to cause endocarditis and meningitis, but not food poisoning. Hence, it is a wrong answer.
Option (b) is given as “Clostridium tetani”.
Clostridium tetani is associated with tetanus, not food poisoning. Hence, it is a wrong answer.
Option (d) is given as “Streptococcus pyogenes”.
Streptococcus pyogenes is known to cause pyoderma, scarlet fever, and rheumatic fever. It infects the host with weak immune system, but is not associated with causing food poisoning. Hence, it is a wrong answer.
Hence, options (a), (b), and (d) are incorrect.
Staphylococcus aureus is responsible for causing food poisoning by producing toxins.
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Chapter 19 Solutions
MASTERING MICROBIOLOGY TAXONOMY
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