General Microbiology Final Exam 20/7/2024 PDF

C:\\Users\\Bar3\\Desktop\\شعار الكلية.jpg بسم الله الرحمن الرحيم Managil College For Medical And Engineering Sciences Medical Laboratory Sciences Program  **General Microbiology Final Exam** **Date : 20/7/2024** --------------...

C:\\Users\\Bar3\\Desktop\\شعار الكلية.jpg بسم الله الرحمن الرحيم Managil College For Medical And Engineering Sciences Medical Laboratory Sciences Program  **General Microbiology Final Exam** **Date : 20/7/2024** ------------------------------------- ---------------------- **Batch One** **Time :** **Student\'s Name**................................................................................. **[Answer all Questions : choose the letter of correct answer and put it in table below ]** 1. **The following Factors Influencing Efficacy of Sterilant /disinfectant :** A. Organism load B. Organism load C. Nature of organisms D. Concentration of the chemical agent or the temperature of heat sterilization E. All of the above 2. **They are the free-living microbes that live on dead or decaying organic matter this term is called :** A. Saprophytes B. Parasites C. Commensals D. Pathogens E. Opportunistic pathogens 3. **The following is anaerobic media include:** A. Thioglycolate broth B. Anaerobic blood agar C. BHIS agar (Brain-heart infusion agar) with supplements ( vitamin K and hemin) D. Neomycin blood agar E. Egg yolk agar 4. **It is Enrichment media :** A. Lowenstein- Jensen (LJ) medium B. Thiosulphate citrate bile salt sucrose (TCBS) agar C. DCA (deoxycholate citrate agar) D. XLD (xylose lysine deoxycholate) agar E. Alkaline peptone water (APW) 5. **It is Simple/Basal Media :** A. Peptone water B. Blood agar: it is prepared by adding 5-10% of sheep blood to the molten nutrient agar at 45 \'C C. Chocolate agar : It is the heated blood agar , prepared by adding 5- 10% of sheep blood to the molten nutrient agar at 70\'C D. Loefller\'s serum slope E. Blood culture media 6. **The following device used to grow and maintain optimal temperature.** A. Autoclave B. Oven C. Incubator D. Bunsen burner E. Candle jar 7. **It is a process by which all Living microorganisms, including viable spores, are either destroyed or removed from an article, body surface or medium :** A. Asepsis B. Disinfection C. Sterilization D. Decontamination E. Sanitization 8. **It is a process where the chemical agents ( called antiseptics) are applied on to the body surfaces (skin):** A. Asepsis B. Disinfection C. Sterilization D. Decontamination E. Sanitization 9. **Autoclaving is :** A. Dry heat B. Moist heat C. Flaming D. Chemical method E. Non of the above 10. **Hot Air Oven** A. Dry heat B. Moist heat C. Flaming D. Chemical method E. Non of the above 11. **Straight filamentous appendages is term is used to describe :** A. Flagella B. Capsule C. Spore D. Nucleus E. Cell 12. **The following [is function of Bacterial Cell Wall] :** A. Gives the bacterial cell its shape & rigidity. B. Forms an osmotic barrier between cytoplasm and environment C. Transport of Respiratory electrons D. Transport of Nutrients inside cell. E. Transport of Waste product outside cell 13. **The following [is function of plasma membrane] :** A. Protects cell against high osmotic pressure and environmental imbalance B. Serves as antigenic determinant to cell. C. Contributes to virulence of organism. D. Secretion of extracellular enzymes and toxins E. Non of the above 14. **.................. is the study of bacteria :** A. Mycology B. Virology C. Bacteriology D. Immunology E. Parasitology 15. **................... is the study of fungi :** A. Mycology B. Virology C. Bacteriology D. Immunology E. Parasitology 16. **The ability of an organism to cause disease in man or animal is used to describe :** A. Pathogenicity B. Virulence C. Virus D. Bacteria E. Fungi 17. **The following is Blood-born transmission :** A. [Influenza ] B. [Cholera ] C. [HIV ] D. [A) and B) is correct ] E. [non of the above] 18. **[The following is Short-term preservation Method/s :]** A. Freezing at -20°C B. Drying: C. Ultra Temperature Freezing D. Lyophilizotion (Freeze-drying) E. A\) and B) is correct 19. **Viruses can be classifies according to :** A. Virion morphology B. Virus genome properties. C. Virus protein properties. D. Biological properties. 20. **\"It refers to the initial infection with a pathogenic microorganism in a host \" this term is used to describe :** A. Infection B. Colonization C. Reinfection D. Secondary infection E. Cross infection **Answer\'s table** +-------------+-------------+-------------+-------------+-------------+ | **[No of | **[Answer\' | | **[No of | **[Answer\' | | Question]{. | s | | Question]{. | s | | underline}* | letter | | underline}* | letter | | * | ]{.underlin | | * | ]{.underlin | | | e}** | | | e}** | +=============+=============+=============+=============+=============+ | 1. | | | **[11.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 2. | | | **[12.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 3. | | | **[13.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 4. | | | **[14.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 5. | | | **[15.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 6. | | | **[16.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 7. | | | **[17.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 8. | | | **[18.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 9. | | | **[19.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ | 10. | | | **[20.]{.un | | | | | | derline}** | | +-------------+-------------+-------------+-------------+-------------+ **[Question two: ]** **Put {T} for true answer and {F} for false answer:** 1. Temperature l60 \'C for 2 hours is required for sterilization in hot air oven { } 2. Viruses are the smallest infectious particles { } 3. Cytoplasm is invaginations of cell membrane { } 4. methylene blue is basic stain { } 5. Simple stains use two or more stains to differentiate between different types of microorganisms { } 6. Hot Air Oven is used to sterile plastics material { } 7. Autoclave is used to sterile culture media { } 8. Plasmids are double-stranded and circular. { } 9. cell wall consist of chitin (90%) (glucose amine multi layers). { } 10. Liquid media contain 2% agar concentration { } **Question three : Short Essays :** 1. **The five main types of microorganisms :** 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2. **Types of media Based on consistency** :................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 3. **The branches of medical microbiology:** **............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................** 4. **Gram\'s stain** : **........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................** 5. **Types of Autoclaves** **........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................** **Question Four : Match column \"A\" with column \"B\" in column \"C\" , Take Number only from Column A and put it in C** +-----------------+-----------------+-----------------+-----------------+ | NO | A | B | C | +=================+=================+=================+=================+ | 1. | Filtration | Radiation | | +-----------------+-----------------+-----------------+-----------------+ | 2. | Peptone water | Enriched media | | +-----------------+-----------------+-----------------+-----------------+ | 3. | Blood agar | Simple media | | +-----------------+-----------------+-----------------+-----------------+ | 4. | Selective Media | Pysical Methods | | | | | of | | | | | sterilization | | +-----------------+-----------------+-----------------+-----------------+ | 5. | MacConkey agar | DCA | | +-----------------+-----------------+-----------------+-----------------+ | 6. | Ionizing | Differential | | | | | media | | +-----------------+-----------------+-----------------+-----------------+ | 7. | Hot air oven | Moist heat | | | | | metods | | +-----------------+-----------------+-----------------+-----------------+ | 8. | Autoclave | Dry heat | | | | | methods | | +-----------------+-----------------+-----------------+-----------------+ | 9. | PAS | C.tetani | | +-----------------+-----------------+-----------------+-----------------+ | | Exotoxins | Fungal stain | | +-----------------+-----------------+-----------------+-----------------+ Good Luck