교과서 질문
Mycobacterium avium-intracellulare was considered relatively harmless until the late 20th century, when it became common in certain infections. Explain how this bacterium’s pathogenicity changed.
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Ch. 19 - Pathogenic Gram-Positive Bacteria
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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TOC.tableOfContents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
19장, 문제 1
Which of the following bacteria causes a common type of food poisoning?
a. Streptococcus sanguis
b. Clostridium tetani
c. Staphylococcus aureus
d. Streptococcus pyogenes
검증된 단계별 안내1
Step 1: Understand the question is asking which bacterium is commonly associated with food poisoning, a condition caused by ingestion of toxins or bacteria-contaminated food.
Step 2: Review the characteristics of each bacterium listed: Streptococcus sanguis is primarily associated with oral flora and dental plaque, not food poisoning.
Step 3: Clostridium tetani is known for causing tetanus, a neurological disease, and is not typically linked to food poisoning.
Step 4: Staphylococcus aureus produces enterotoxins that can contaminate food and cause rapid-onset food poisoning symptoms, making it a common cause of food poisoning.
Step 5: Streptococcus pyogenes is mainly responsible for infections like strep throat and skin infections, not food poisoning.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Food Poisoning and Its Causes
Food poisoning occurs when harmful bacteria or their toxins contaminate food, leading to illness. Understanding which bacteria commonly cause food poisoning helps identify the source and symptoms of the infection.
추천 영상:
03:24
Lipid A Causes Septic Shock
Staphylococcus aureus as a Foodborne Pathogen
Staphylococcus aureus is a common bacterium that produces toxins causing rapid-onset food poisoning. It often contaminates improperly stored or handled foods, leading to symptoms like nausea, vomiting, and diarrhea.
추천 영상:
03:40Introduction to Pathogenic Toxins
Distinguishing Pathogenic Roles of Bacteria
Different bacteria cause distinct diseases; for example, Clostridium tetani causes tetanus, while Streptococcus species are linked to throat infections or dental issues. Recognizing these roles helps differentiate which bacteria are responsible for food poisoning.
추천 영상:
03:40Introduction to Pathogenic Toxins
관련 실천
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Why are mycoplasmas able to survive a relatively wide range of osmotic conditions, even though these bacteria lack cell walls?
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How does Staphylococcus aureus affect the matrix between cells in the human body?
a. S. aureus triggers blood clotting, which coats the matrix and inhibits cellular
communication.
b. S. aureus produces an enzyme that dissolves hyaluronic acid and thus enables it to pass between the cells.
c. S. aureus possesses a hyaluronic acid capsule that causes leukocytes to ignore the bacterium as if it were camouflaged.
d. S. aureus does not affect the matrix but instead produces a necrotizing agent that dissolves body cells.
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Label acetylcholine. Color the sites of action of botulism toxin on a nerve cell.
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Match the genera of pathogens to their appearance in stained smears: Actinomyces, Bacillus, Clostridium, Mycobacterium, Staphylococcus, Streptococcus.
(a) Methenamine silver <IMAGE>
(b) Gram <IMAGE>
(c) Gram <IMAGE>
(d) Acid fast <IMAGE>
(e) Gram <IMAGE>
(f) Gram <IMAGE>
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교과서 질문
For each of the following diseases or conditions, indicate the genus (or genera) of bacterium that causes it.
___ Scalded skin syndrome
___ Osteomyelitis
___ Pharyngitis
___ Scarlet fever
___ Pyoderma
___ Rheumatic fever
___ Glomerulonephritis
___ Sinusitis
___ Otitis media
___ Anthrax
___ Myonecrosis
___ Diphtheria
___ Leprosy
___ Dental caries
___ Acne
A. Staphylococcus
B. Streptococcus
C. Mycobacterium
D. Listeria
E. Propionibacterium
F. Corynebacterium
G. Bacillus
H. Clostridium
I. Actinomyces
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