Mycology is the branch of microbiology which studies:

1. Mycology is the branch of microbiology which studies: (Points : 2)       Bacteria        Protozoa        Fungi        Viruses
Question 2. 2. Main structural difference between prokaryotes and eukaryotes is: (Points : 2)       Absence of cell wall in prokaryotes        Absence of nucleus in prokaryotes        Absence of nucleic acid in prokaryotes        Absence of flagella in prokaryotes
Question 3. 3. Under the microscope with Gram stain if you observe purple colored round organisms in chains they will be called: (Points : 2)       Streptococci        Staphyloccoci        Gram negative bacilli        Spirochetes
Question 4. 4. Parasite is an organism (Points : 2)       that causes a disease        which harbors another organism        too small to be seen by naked eye        which require another organism in order to survive
Question 5. 5. The disease causing “agent” composed only of a protein is called: (Points : 2)       Virus        Viroid        Prion        Proteinome
Question 6. 6. The unicellular parasites which infect humans are called: (Points : 2)       Prokaryotes        Protozoa        Platyhelminths        Nemathelminths
Question 7. 7. Louise Pasteur developed vaccines for (Points : 2)       Cholera, Small pox        Polio, tetanus        Influenza & Hepatitis        Anthrax & Rabies
Question 8. 8. Molecular postulates are used to determine whether a given bacterium causes the disease?   (Points : 2)       True        False
Question 9. 9. What are Koch’s postulates used for? (Points : 2)       Directly relating a specific microbe to a specific disease        Identifying an unknown from a mixed culture of bacteria        Differentiating between Gram-negative and Gram-positive bacteria        All of the above 
Question 10. 10. Robert Koch isolated which of the following organisms for the first time? (Points : 2)       Staphylococcus        organism causing silkworm disease        Anthrax bacillus        Influenza virus
Question 11. 11. Louise Pasteur disproved the theory of spontaneous generation.   (Points : 2)       True        False
Question 12. 12. Microbiology has lost the significance in the US as our main health issues are non microbial diseases.   (Points : 2)       True        False
Question 13. 13. Which of the following statement is true for Archaea? (Points : 2)       They contain peptidoglycan in their cell wall        They are eukaryotes living in extreme environments        They are prokaryotes living in extreme environments        They consist of major human pathogens
Question 14. 14. Which of the following is an important function of bacterial capsule? (Points : 2)       to protect against the phagocytes        house the enzymes required for bacterial metabolism        give rigidity to the cell        To control flow of nutrients into the cell.
Question 15. 15. Main locomotor organ of a bacterium is (Points : 2)       Pilus        Fimbria        Flagellum        Protoplasm
Question 16. 16. Which of the following structures are used by bacteria to adhere (stick to) the surfaces? (Points : 2)       Cell membrane        Golgi apparatus        Pili        Flagella
Question 17. 17. What is the predominant component in a gram positive organism’s cell wall? (Points : 2)       Techoic acid        Lipoproteins        Lipopolysaccharide        Peptidoglycan
Question 18. 18. Which of the forms will be produced by some bacterial species under adverse conditions? (Points : 2)       Reproductive form        Protoplast        Endospore        Cysts
Question 19. 19. Rickettsia  and Chlamydia are called obligate intracellular “parasites” because: (Points : 2)       They are viruses        They lack cell wall        They are eukaryotes        They cannot survive and multiply outside a host cell
Question 20. 20. Which of the following is the site for energy or ATP generation in bacteria? (Points : 2)       Nucleus        Cell membrane        Plasmids        Cytoplasm
Question 21. 21. Electron microscope is used in microbiology for visualizing (Points : 2)       Parasites        Viruses        Bacteria        Fungi
Question 22. 22. The Gram stain technique is valuable in distinguishing : (Points : 2)       types of fungi        the size and structure of viruses        the nucleus of bacteria from other cellular organelles        types of bacteria
Question 23. 23. The binomial system of nomenclature for microorganisms uses the (Points : 2)       genus and species epithet        order and species epithet        kingdom and genus names        family and order names
Question 24. 24. Match the following nutritional type with its energy and carbon source: (Points :8: 2 points each) (Points : 8)Potential Matches:1 : Photoheterotroph2 : Chemoautotroph3 : Photoautotroph4 : Chemoheterotroph    Answer     : Uses inorganic compounds for energy and carbon dioxide for carbon source     : Uses light for energy source and organic sources for carbon source     : Uses organic chemical reactions for energy and carbon source     : Uses light for energy and Carbon dioxide for carbon source
Question 25. 25. An example of genes in bacteria other than those on the chromosome is: (Points : 2)       Plasmids        Mitochondria        Free strands of DNA on bacterial surface        Ribosomes
Question 26. 26. Genes existing on plasmids may include those for: (Points : 2)       capsule production        Krebs cycle enzymes        cell division        antibiotic resistance
Question 27. 27. Cloning in genetic engineering is defined as replicating bacteria to identical forms.   (Points : 2)       True        False
Question 28. 28. Where do transcription and translation occur in prokaryotic cells? (Points : 2)       on the plasma membrane        in the nucleus        in the cytoplasm        in chromatophores 
Question 29. 29. Prokaryotes reproduce using a type of cell division known as (Points : 2)       Meiosis I        Binary fission        Mitosis        Meiosis II
Question 30. 30. The synthesis of an RNA molecule from a DNA molecule is called (Points : 2)       replication        transcription        translation        DNA synthesis
Question 31. 31. When an organism infects the body without any detectable impairment of body function it is called: (Points : 2)       Subclinical or inapparent infection        Acute infection        Chronic infection        Latent infection
Question 32. 32. If a 55 year old patient is suffering from infection of his right eye, what pattern of infection is seen? (Points : 2)       Generalized infection        Focal infection        Localized infection        Congenital infection
Question 33. 33. If a patient had a bout of influenza and then suffered from pneumonia immediately, pneumonia would be called: (Points : 2)       Biphasic illness        Systemic infection        Primary infection        Secondary infection
Question 34. 34. Which of the following is a strong indicator of bacterial infection? (Points : 2)       Presence of pus in the wound        Malaise and fatigue disproportionate to other symptoms        Increase in lymphocytes with normal neutrophils        Biphasic illness
Question 35. 35. Non specific symptoms occurring in early stages of infection is called (Points : 2)       Incubation period        Prodrome ( Prodromium)        Clinical disease        Convalenscence
Question 36. 36. When the mother transmits an infection during pregnancy to the fetus is called: (Points : 2)       Focal infection        Latent infection        Congenital infection        Systemic infection
Question 37. 37. When both parasite and host benefit from existence of the microbe in the body the host microbe relationship can be described as: (Points : 2)       Commensalism        Symbiosis        Opportunistic Pathogenism        Parasitism
Question 38. 38. Another term used for normal flora is: (Points : 2)       Opportunistic pathogen        Primary pathogen        Indigenous flora        Parasitic flora
Question 39. 39. If a very healthy athlete comes down with tuberculosis, what type of pathogen is Mycobacterium tuberculosis? (Points : 2)       True (primary pathogen)        Secondary pathogen        Opportunistic pathogen        Congenital pathogen
Question 40. 40. Minimum number of organisms required to establish infection is called: (Points : 2)       Pathogenic dose        Infectious dose        Virulence dose        Toxic dose
Question 41. 41. Presence of pus in an infection site indicates which of the following virulence factors may be possessed by the pathogens? (Points : 2)       Hyaluronidase        Collagenase        Capsule        Leukocidin
Question 42. 42. Exotoxins are (Points : 2)       tissue specific        heat stable        very weak in their action        part of the bacterial cell wall
Question 43. 43. Innate immunity refers to: (Points : 2)       immunity acquired after infection        immunity after immunization        specific immune response to an antigen        nonspecific immunity present since birth
Question 44. 44. The immunity mediated by antibodies is called: (Points : 2)       Innate immunity        Humoral immunity        Cytotoxic immunity        Cellular immunity
Question 45. 45. The primary immunodeficiencies are due to: (Points : 2)       Developmental defects        Genetic defects        Drug therapy        a & b
Question 46. 46. Which of the following cells can be infected by HIV (AIDS virus) (Points : 2)       Neurons        Macrophages        T lymphocytes        All of the above
Question 47. 47. If the majority of population has immunity against a pathogen then it may lead to virtual elimination of the pathogen from that population. This phenomenon is due to: (Points : 2)       Individual immunity        Herd immunity        Weakening of the pathogen        Reduction in natural habitat of the pathogen

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