Description : Which one of the following characteristics pertains to hepatitis A? a. Transmission is by the fecal-oral route. b. The incubation period is 2 to 4 weeks. c. It is an acute, inflammatory liver disease. d. All of the above (A—C) are correct.
Last Answer : d. All of the above (A—C) are correct.
Description : The most common cause of an invasive wound infection, such as a burn, is a. gram-positive bacterial species. b. treponema pallidum. c. Pseudomonas aeruginosa. d. Escherichia coli.
Last Answer : c. Pseudomonas aeruginosa.
Description : The fungus Candida albicans has been known to infect a. The human intestine. b. The mucous membranes of the oral cavity. c. The female vagina. d. All the above (a-c) are correct.
Last Answer : d. All the above (a-c) are correct.
Description : A Candida albicans infection of the intestine, vagina, or oral cavity are commonly treated with a. cefotaxime. b. vidarabine. c. streptomycin. d. nystatin.
Last Answer : d. nystatin.
Description : Which one of the following is NOT a digestive organ of the gastrointestinal (GI) tract? a. Large intestine b. Oral cavity c. Liver d. Small intestine
Last Answer : c. Liver
Description : Which one of the following statements is false in respect of viability of mammalian sperm? (a) Sperm is viable for only up to 24 hours. (b) Survival of sperm depends on the pH of the ... ) Viability of sperm is determined by its motility. (d) Sperms must be concentrated in a thick suspension.
Last Answer : (a) Sperm is viable for only up to 24 hours.
Description : 70. Which one of the following statements is false in respect of viability of mammalian sperm ? (1) Sperms must be concentrated in a thick suspension (2) Sperm is viable for only up to 24 hours ... the medium and is more active in alkaline medium (4) Viability of sperm is determined by its motility
Last Answer : Sperm is viable for only up to 24 hours
Description : All the following apply to trachoma except: a. the disease occurs in the eyes. b. tetracycline is helpful in therapy. c. tiny, pale nodules form on the conjunctiva. d. the agent of the disease is Treponema pertenue.
Last Answer : d. the agent of the disease is Treponema pertenue.
Description : Organisms that normally inhabit the body a. include Treponema pallidum. b. cause endogenous diseases. c. may be detected by Donovan bodies. d. resist the effects of antibiotics.
Last Answer : b. cause endogenous diseases.
Description : Which of the following bacteria dies quickly after drying? A- .Treponema palladium B- Mycobacterium tuberculosis C- Staphylococcus aureus D- Pseudomonas aeruginosa
Last Answer : .Treponema palladium
Description : The interval of time between successive reproductions is called a. Doubling time b. Generation time c. Incubation time d. Fission time
Last Answer : b. Generation time
Description : A disease producing species occurring in a mixed culture can often be selected on the basisofits A- pathogenic properties B- special carbon source C- special nitrogen source D-.none of these
Last Answer : pathogenic properties
Description : Match the disease in column I with the appropriate items (pathogen / prevention / treatment) in column II. Column I Column II A. Amoebiasis (i) Treponema pallidum B. Diphtheria (ii) Use only sterilised food and water C. Cholera (iii)DPT ... D - (iv) (d) A - (ii), B - (iv), C - (i), D - (iii)
Last Answer : (b) A – (ii), B – (iii), C – (iv), D – (i)
Description : Yersinia enterocolitica and Y. pestis can be differentiated on the basis of which of the following tests? A.Decarboxylation of ornithine B.Fermentation of sucrose and cellobiose C.Motility at 22°C D.All of these
Last Answer : D.All of these
Description : Which of the following do some bacterial cells use for motility? a. flagella b. cillia c. fimbriae d. pseudopodia
Last Answer : a. flagella
Description : If you wanted to study bacterial motility you would most likely use a. A transmission electron microscope. b. A tight microscope with dark-field optics. c. A scanning electron microscope. d. A light microscope with phase-contrast optics.
Last Answer : a. A transmission electron microscope.
Description : Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature
Last Answer : b. It does not use in micro-propagation work
Description : For the selection of lactobacilli present in cheddar cheese, the pH of the medium is Maintainedat A- 6.35 B- .5.35 C- 4.35 D- 5.75
Last Answer : .5.35
Description : To select cholera-causing bacterium, Vibrio cholerae, the pH of the medium is maintained at apH of A- 8.5 B-8.90 C-6.79 D- 3.5
Last Answer : 8.5
Description : Tricyclic antidepressants can alter the oral absorption of many drugs by: A. Complexing with the other drug in the intestinal lumen B. Altering gut motility C. Altering gut flora D. Damaging gut mucosa
Last Answer : B. Altering gut motility
Description : The time temperature combination for HTST paterurization of 71.1°C for 15 sec is selected on the basis of A.CoxiellaBurnetii B.E. coli C.B. subtilis D.C. botulinum
Last Answer : A.CoxiellaBurnetii
Last Answer : .CoxiellaBurnetii
Description : ________________ causes pharmacodynamic drug interaction. a) Gastric motility changes. b) Stimulation of metabolism. c) Alteration of pH of GIT. d)Interactions at receptor site.
Last Answer : d)Interactions at receptor site.
Description : .What is the most common malignant lesion that occurs in the oral cavity: A. Ameloblastoma B. Squamous cell carcinoma C. Osteosarcom
Last Answer : B. Squamous cell carcinoma
Description : All the following are chemical parameters considered when selecting an antiseptic or disinfectant except: a. Dehydration. b. Temperature. c. Stability. d. Ph
Last Answer : b. Temperature.
Description : Which of the following conditions are important for the growth of microbes? a. Temperature b. Gas c. pH d. Oxygen e. All the above
Last Answer : e. All the above
Description : Match the following sexually transmitted diseases (column I) with their causative agent (column II) and select the correct option. Column I Column II A. Gonorrhoea (i) HIV B. Syphilis (ii) Neisseria C. Genital warts (iii) Treponema D. ... iii) (i) (c) (iv) (iii) (ii) (i) (d) (ii) (iii) (iv) (i)
Last Answer : (d) (ii) (iii) (iv) (i)
Description : The fecal-oral route is the mode of transmission for the _____. a. Hepatitis A virus. b. Hepatitis B virus. c. Hepatitis A and B viruses. d. All hepatitis viruses.
Last Answer : b. Hepatitis B virus.
Description : Arboviral encephalitis is an example of a a. disease causing gastroenteritis. b. disease spread by the fecal-oral route. c. Zoonosis d. type of hepatitis.
Last Answer : c. Zoonosis
Description : Which of the foLlowing is NOT a transmission mechanism for hepatitis B? a. Sexual contact b. Non-sterile body piercing equipment c. Fecal-oral route d. Blood-contaminated needles
Last Answer : c. Fecal-oral route
Description : What is the best treatment for cholera? a. Antibiotics b. Water c. Milk d. Oral Rehydration Therapy
Last Answer : d. Oral Rehydration Therapy
Description : Botulism is an example of a _____. a. waterborne infection b. foodborne intoxication c. waterborne intoxication d. fecal/oral infection
Last Answer : b. foodborne intoxication
Last Answer : a. waterborne infection
Description : Streptococcus pyogenes is highly contagious by _____. a. Unwashed hands b. Oral/fecal route c. Respiratory droplets d. Remaining on surfaces for long periods of time
Last Answer : c. Respiratory droplets
Description : Which of the following is correct for r-selected species? (a) Large number of progeny with small size (b) Large number of progeny with large size (c) Small number of progeny with small size (d) Small number of progeny with large size
Last Answer : (a) Large number of progeny with small size
Description : Cell size and cell number can be measured using A- hemocytometer B- coulter counter C- petroff-hausser counting chamber D- none of these
Last Answer : coulter counter
Description : Newly emerging viruses causing human disease can arise from a. Species Jumping. b. Mutations. c. Genetic Recombination. d. All Of The Above (A—C) Are Correct.
Last Answer : d. All Of The Above (A—C) Are Correct.
Description : The Ames test is an effective procedure for a. Identifying disease-causing bacterial species. b. Detecting potential human carcinogens. c. Determining if DNA replication has occurred. d. Detecting antibiotic resistance.
Last Answer : b. Detecting potential human carcinogens.
Description : The Ames test is used to a. Identify Potential Human Carcinogens. b. Discover Auxotrophic Mutants. c. Find Pathogenic Bacterial Species. d. Identify Antibiotic Resistant Mutants.
Last Answer : a. Identify Potential Human Carcinogens.
Description : Mixture of food and saliva in oral cavity is called
Last Answer : Mixture of food and saliva in oral cavity is called
Description : Prolonged and severe iron deficiency can cause astrophy of epithelium of (A) Oral cavity (B) Oesophagus (C) Stomach (D) All of these
Last Answer : Answer : D
Description : Hydrochloric acid is secreted by the cells lining the – (1) Oral cavity (2) Stomach (3) Ileum (4) Colon
Last Answer : (2) Stomach Explanation: The chief cells of the stomach secrete enzymes for protein breakdown (inactive pepsinogen and rennin). Hydrochloric acid activates pepsinogen into the enzyme pepsin, which then helps digestion by breaking the bonds linking amino acids, a process known as proteolysis.
Description : The MOST common sites for squamous carcinoma in the oral cavity are:** A. Palate and gingivae B. Tongue and floor of the mouth C. Tongue and palate
Last Answer : B. Tongue and floor of the mouth
Description : At birth, the oral cavity usually contains: A. S. mutans only B. No micro organism C. S. mutans and S. salivavis D. Lactobacilli and S. mutans
Last Answer : B. No micro organism
Description : Which cement is less soluble in the oral cavity: A. Polycarboxylate B. Zinc phosphate C. Silicate phosphate D. GIC
Last Answer : D. GIC
Description : .Which of the following is true: A. Antibiotics are useful in the treatment of periodontitis B. Trauma from occlusion causes thickening of the marginal gingivae C. Periodontitis is the ... can be identified by x-ray E. Periodontitis is the most common disease in the oral cavity
Last Answer : E. Periodontitis is the most common disease in the oral cavity
Description : An old male presents complaining of having numerous white lesions in the oral cavity within past few days. Prior to this the family physician prescribed chlorite tetracycline for an upper respiratory infection, ... plaques on the lip mucosa, buccal mucosa and the tongue. MOST LIKELY to be:
Last Answer : Moniliasis (Which is candidiasis)