بنك اسئلة 1
1. When a bacterial cell and mitochondria are treated with cyanide and carbon monoxide what happens initially?a. Respiration inhibitsb. Photosynthesis inhibitsc. Protein synthesis inhibitsd. No effect occurs2. Which virus was first observed?a. Hepatitis Virusb. TMVc. Cauliflower mossaic virusd. None of these3. The most important energy-yielding reaction for an aerobic organism isa. Glycosis b. EMPc. KDPG d. Both b and c4. A disease that can be transmitted by an infectious agent from one individual toanother was calleda. Epidemic b. Pandemicc. Communicable d. Comma5. Cell cycle regulated bya. Cyclins b. Cdksc. Cyclins and Cd ks d. None of these6. The proteinaceous compound are converted to ammonia bya. Putrification bacteriab. Ammonifiaction bacteriac. Nitrification bacteriad. Denitrifying bacteria7. A cell becomes flaccid when placed in aa. Isotonic solutionb. Hypertonic solutionc. Hypotonic solutiond. Normal solution8. A mutation causing a substitution of one amino acid is calleda. Point mutation b. Silent mutationc. Missence mutation d. None of these9. The formation spindle fibres in the process of cell division is prevented bya. Corchicine b. ATPc. Hydrazine d. All of these10. Important class of respiratory enzymes:a. NAD b. Cytochromesc. ATPase d. Hydrolases11. The primary mode of transmission of poliomyelitis virus:a. Flies b. Milkc. Person to person d. Food and water12. Genetic constitution of the cell isa. Phenotype b. Genotypec. Cryptotype d. Histotype13. The primary mode of transmission of poliomyelitis isa. Oral route b. Bloodc. Milk d. Person to person14. Cerebral malaria is caused bya. Plasmodium vivoxb. P.ovalec. P.falsiparumd. P.malaria15. Ergot disease is caused bya. Puccinia b. Rhizopusc. Claveceps d. Penicillium16. Most bacteria require vitamins asa. Growth Factorsb. Sources of energyc. Sources of carbond. Sources of electron donars17. Which of these is a trace element for bacteria?a. Mg+2 b. Na+c. Ca+2 d. Mn+218. Virulent factor in pneumococcus isa. Cell wallb. Capsulec. Mesosomesd. Emdotoxins19. The Bacteria move in response to magnetic field isa. Spirochetsb. Treponemac. Aquaspirillum Magnetotacticumd. None of these20. Nagler reaction detectsa. Corynebacterium diphtheriaeb. Clostridium tetanic. Clostridium perfringensd. Clostridium botulinum21. The following organisms lack definite cell walla. Mycoplasma b. L-formsc. Both a and b d. Bacteria22. The following disease are caused by Mycoplasma excepta. Pneumonia in human beingsb. Little leaf of Brinjalc. Dwarf disease of Mulberyd. Citrus canker23. Mycotoxins are produced bya. Bacteriab. Fungic. Algaed. ProtozoansE. Gram negative cocciF. Rod shaped-acid fast