Science Homework Help

You don’t need to watch all the videos, just complete the questions given below. And sorted it into the document and sent it to me. It’s better to answer with the original words in the video.

1.Describe portals of entry and exit in human infection and adhesion strategies used by pathogens.

2.Describe types and characteristics of antiphagocytic factors.

3.Compare and contrast exoenzyme, endotoxin, and exotoxin.

4.Describe types of asymptomatic carriers.

5.Describe (a) origin of antibiotic resistance and (b) four mechanisms of antibiotic resistance in bacteria.

6.Define or describe the followings: true & opportunistic pathogens, normal flora, microbiota, prophylaxis,

probiotics, prebiotics, microbial antagonism, endogenous & exogenous infections, capnophile, Infectious dose, leukocidins, virulence factors, Lipid A, A-B toxin, incubation period, prodromal stage, period of invasion, convalescent period, localized infection, systemic infection, focal infection, mixed infection, primary infection, secondary infection, acute infection, chronic infection, symptom, sign, syndrome, inflammation, edema, granulomas, abscesses, lymphadenitis, lesion, leukocytosis, leukopenia, septicemia, bacteremia, viremia, latency, sequelae, reservoir, source, carrier, asymptomatic infections, Typhoid Mary, passive carrier, biological & mechanical vectors, zoonosis, communicable disease, contagious, fomites, universal precautions, BSI techniques, nosocomial infection, epidemiology, John Snow, prevalence & incidence, mortality & morbidity rates, endemic, sporadic, epidemic, pandemic, MRSA, drugs of last resort.

7.Contrast and compare major characteristics of Staphylococcus and Streptococcus species.

8.Draw culture-based identification flow charts of Staphylococcus and Streptococcus spp.

9.Describe major characteristics of following genus or bacteria:

Staphylococcus, Streptococcus, S. mutans, Bacillus, B. anthracis, B. cereus, Clostridium, C. perfringens, C. difficile, C. tetani, C. botulinum, Listeria monocytogenes, Erysipelothrix rhusiopathiae, Corynebacterium diphtheria, Mycobacterium, M. tuberculosis, M. leprae, Actinomyces, Nocardia, Neisseria, N. gonorrhoeae, N. meningitidis, Pseudomonas aeruginosa, Burkholderia, Brucella, Francisella tularensis, Bordetella pertussis, Alcaligenes faecalis, Legionella pneumophila, Escherichia coli, Klebsiella pneumoniae, Enterobacter, Citrobacter, Serratia marcescens, Proteus, Morganella, Providencia, Salmonella, Shigella, Yersinia pestis, Haemophilus influenzae, H. aegyptius , H. ducreyi , Vibrio, V. cholera, V. vulnificus, V. parahaemolyticus, Campylobacter, Helicobacter, Treponema, Leptospira, Borrelia, Rickettsia, Coxiella, Bartonella, Chlamydia

10.Define or describe the followings
Coagulase, Enterotoxin, Exfoliative toxins, Exfoliative toxins, Toxic shock syndrome toxin, Folliculitis, Furuncle, Carbuncle, Impetigo, Osteomyelitis, Endocarditis, α-, β-, γ-hemolysis, viridans, C-carbohydrates, M-protein, Hyaluronic acid capsule, C5a protease, Streptolysins, Erythrogenic (or pyrogenic) toxin, superantigens, Streptokinase, Hyaluronidase, pyoderma, Erysipelas, bacitracin, CAMP test, Fried Rice Syndrome, myonecrosis (or gas gangrene), tetanus, erysipeloid, mycolic acids, diphtherotoxin, Tdap shot, Herd immunity, Acid-fastness, Mantoux (tuberculin) test, induration, leprosy, globi, Actinomycosis, Nocardiosis, gonorrhea, meningitis, pyocyanin, brucellosis, tularemia, pertussis (or whooping cough), coliforms, EHEC, EAEC, STEC, swarm, perforations, appendicitis-like symptoms, plague, chocolate agar, chancroid, Syphilis, rickettsioses, Q fever, Trench fever, Cat-scratch disease, chlamydia & trachoma, Elementary body & Reticulate body.