InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Malaria fever coincides with liberation ofA. crypotomerozoitesB. metacryptomerozoitesC. merozoitesD. trophozoites |
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Answer» Correct Answer - C (c) Meterozoites are te progeny of sporozoites, formed in the liver of human. These are produced several days after the initial infection, which enter the blood stream and infect erythrocytes. |
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| 2. |
The infective state of malarial parasite Plasmodium that enters human body isA. merozoiteB. sporozoiteC. trophozoiteD. minuta form |
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Answer» Correct Answer - B (b) Sporozoites are small, spindle-shaped, uninucleate organisms present in the salivary glands of the mosquito. Sporozoites represent the infective stage, which along with saliva inoculates into the blood stream of human and undergo schizogony. |
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| 3. |
Who discovered Plasmodium in RBCs of human beings?A. Ronald RossB. MendelC. LaveranD. Stephen |
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Answer» Correct Answer - C (c) In 1880, Charles Laveran discovered Plasmodium, the causative agent of malaria in RBCs of human beings. In 1897, Ronald Ross discovered oocytes of Plasmodium in the stomach of mosquito. |
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| 4. |
African sleeping sickness is due toA. Plasmodium vivax transmitted by tse-tse flyB. Trypanosoma lewsii transmitted by bed bugC. Trypanosoma gambiense transmitted by Glossina palpalisD. Entamoeba gingivalis spread by house fly |
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Answer» Correct Answer - C (c) The disease African sleeping sickness is caused by Trypanosoma gambiense and this is transmitted by tse-tse fly (Glossina palpalis). |
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| 5. |
In Amoeba and Paramecium osmoregulation occurs throughA. pseudopodiaB. nucleusC. contractile vacuoleD. general surface |
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Answer» Correct Answer - C (c) Amoeba and Paramecium contains two contractile vacuoles (anterior and posterior, the latter being faster) for osmoregulation, i.e. maintaining water balance in the body. |
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| 6. |
Polarity in Amoeba is determined by the loca- tion ofA. pseudopodiaB. uroidC. hyaline capD. microridges |
| Answer» Correct Answer - B | |
| 7. |
Microridges on the surface of Amoeba help inA. adhesionB. respirationC. excretionD. osmoregulation |
| Answer» Correct Answer - A | |
| 8. |
The conversion of plasmagel into plasmasol and vice versa in Amoeba was first studied byA. PantinB. HymenC. MastD. Taylor |
| Answer» Correct Answer - C | |
| 9. |
The chief advantage of encystment to an Amoeba isA. the chance to get rid of accumulated waste productsB. the ability to survive during adverse physical conditionsC. the ability to live for some time without ingesting foodD. protection from parasites and predators |
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Answer» Correct Answer - B (b) Encystment of Amoeba is occurred regularly to tide over unfavourable conditions like drought and extreme temperature, etc. During these conditionns, the Amoeba forms a covering or cyst wall around intself. Thus, it is an adaptation to sunrise during adverse conditionns (extranuclear inheritance adverse condition). |
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| 10. |
Which of the following is not a locomotory organella of protozoansA. PseudopodiaB. CiliaC. FlagellaD. Parapodia |
| Answer» Correct Answer - D | |
| 11. |
Most green euglenoids store their carbohydrates asA. starchB. glycogenC. celluloseD. paramylum |
| Answer» Correct Answer - D | |
| 12. |
During binary fission nucleus dividesA. mitoticallyB. meioticallyC. amitoticallyD. none of these |
| Answer» Correct Answer - A | |
| 13. |
Longitudinal binary fission is found inA. AmoebaB. ParameciumC. EuglenaD. None |
| Answer» Correct Answer - C | |
| 14. |
Transverse binary fission occurs inA. EuglenaB. ParameciumC. HydraD. Amoeba |
| Answer» Correct Answer - B | |
| 15. |
Paramecium contains a dimorphic nucleus that hasA. two micronucleiB. one macro & one or two micronucleiC. two macronucleiD. one micro and one, two or more macro nuclei |
| Answer» Correct Answer - B | |
| 16. |
Malarial parasite can be best obtained from the patientA. five hours after temperature becomes normalB. when temperature rises with vigourC. one hour before rise of temperatureD. any time. |
| Answer» Correct Answer - B | |
| 17. |
Which stage of malarial parasite escapes digestion in stomach of mosquito ?A. GametocytesB. TrophozoitesC. MerozoitesD. Sporozoites |
| Answer» Correct Answer - A | |
| 18. |
Interval between the entry of sporozoites into human blood and the first appearance of malarial symptoms is known asA. cycle of GolgiB. incubation periodC. sporogonyD. erythrocyte cycle. |
| Answer» Correct Answer - B | |
| 19. |
Where will you look for the sporozoites of malarial parasite ?A. Saliva of infected female Anopheles mosquitoB. Red blood corpuscles of human suffering from malariaC. Spleen of infected humansD. Salivary glands of freshy moulted female Anopheles mosquito |
| Answer» Correct Answer - A | |
| 20. |
Where had Ronald Ross done his research related to malarial parasiteA. LondonB. HyderabadC. LucknowD. Chennai |
| Answer» Correct Answer - B | |
| 21. |
No vaccine for malaria is developed becauseA. Plasmodium produces no anti body or antitoxin in hostB. Plasmodium is too large to be acted by vaccineC. Plasmodium has two hostsD. none of the above. |
| Answer» Correct Answer - A | |
| 22. |
Sexual phase of life cycle in Plasmodium occurs inA. blood of manB. gut of female Anopheles mosquitoC. salivary glands of Anopheles mosquitoD. body cavity of male Anopheles mosquito. |
| Answer» Correct Answer - B | |
| 23. |
Shivering characteristic of malaria is caused whenA. schizonts act on reticulo-endothelial cellsB. schizonts enter the RBCC. signet ring is formedD. merozoites are liberated with toxin from RBC |
| Answer» Correct Answer - D | |
| 24. |
Which of the following malarial parasites has the longest incubation period ?A. P. vivaxB. P. ovaleC. P. malariaeD. P. falciparum |
| Answer» Correct Answer - C | |
| 25. |
Man in the life cycle of Plasmodium isA. primary hostB. secondary hostC. intermediate hostD. none of these |
| Answer» Correct Answer - B | |
| 26. |
Sexual mode of reproduction in protozoa isA. schizogonyB. autogamyC. plasmotomyD. anisogamy |
| Answer» Correct Answer - D | |
| 27. |
Who was the first to observe Plasmodium in the RBC of patient of malaria ?A. Edward JennerB. Ronald RossC. LaveranD. Louis Pasteur |
| Answer» Correct Answer - C | |
| 28. |
Incubation period of Plasmodium falciparum isA. 12 daysB. 15 daysC. 20 daysD. 30 days |
| Answer» Correct Answer - A | |
| 29. |
Quartan malaria is caused by PlasmodiumA. ovaleB. falciparumC. malariaeD. vivax |
| Answer» Correct Answer - C | |
| 30. |
Motile elongate zygote of Plasmodium occurs inA. Salivary glands of AnophelesB. Human RBCsC. Human liverD. Gut of female Anopheles |
| Answer» Correct Answer - D | |
| 31. |
Plasmodium falciparum causes malariaA. quartanB. benign tertianC. pernicious tertianD. pernicious quartan |
| Answer» Correct Answer - C | |
| 32. |
All stages of Plasmodium are digested in stomach of female Anopheles exceptA. sporozoitesB. gametocytesC. erythrocytesD. merozoites |
| Answer» Correct Answer - B | |
| 33. |
Contractile vacuo es m ro ozoa serve the purpose ofA. water circulationB. digestionC. osmoregulationD. excretion |
| Answer» Correct Answer - C | |
| 34. |
Which colourless protistan shows bioluminescence?A. NaviculaB. NoctilucaC. DictyosteliumD. Phacus |
| Answer» Correct Answer - B | |
| 35. |
In bioluminescence, chemical energy is changed intoA. radiant energyB. biological energyC. mechanical energyD. chemical energy |
| Answer» Correct Answer - A | |
| 36. |
Slime moulds in the division Myxomycota (true slime moulds) haveA. pseudoplasmodiaB. spores that develop into free-living amoeboid cellsC. spores that develop into flagellated gametesD. feeding stages consisting of solitary individual cells. |
| Answer» Correct Answer - C | |
| 37. |
Phagotrophic nutrition is present inA. dinoflagellatesB. euglenoidsC. slime moldsD. diatoms |
| Answer» Correct Answer - C | |
| 38. |
A transparent bivalved siliceous shell (silica deposited in cellulosic cell wall) known as frustule is present inA. dinoflagellatesB. diatomsC. euglenoidsD. both (2) and (3) |
| Answer» Correct Answer - B | |
| 39. |
Which is common amongst Euglena, Amoeba, Entamoeba and TrypanosomaA. Binary fissionB. Contractile vacuoleC. Holozoic nutritionD. Multiple fission |
| Answer» Correct Answer - A | |
| 40. |
Entamoeba histolytica is an intestinal parasite found m humanA. colon/upper part of large intestineB. duodenumC. ileumD. rectum |
| Answer» Correct Answer - A | |
| 41. |
Fresh water Amoeba and intestinal Amoeba are alike inA. possession of single contractile vacuoleB. absence of ciliaC. structure of cystD. mechanism of dispersal. |
| Answer» Correct Answer - B | |
| 42. |
NMEP isA. operative since 1953 as national programme to eradicate malariaB. a national programme to give anti ma- larial drugs to man throughout the country on the same dayC. a research centre of WHO for doing re- search on malariaD. both (1) and (2) |
| Answer» Correct Answer - A | |
| 43. |
The function of neuromotor system in Para- mecium is concerned withA. coordination of various stimuli and responsesB. ciliary beatingC. control of osmoregulationD. control of digestion. |
| Answer» Correct Answer - B | |
| 44. |
Pebrine disease in silkworm is caused byA. NosemaB. EimeriaC. OpalinaD. Vorticella |
| Answer» Correct Answer - A | |
| 45. |
If a marine protozoan is transferred to fresh water mediumA. it remains staticB. it burstsC. it shrinksD. it enlarges but shrinks again. |
| Answer» Correct Answer - D | |
| 46. |
Gametocytes and erythrocytic cycle of malarial parasite occur inA. RBC/blood of manB. salivary glands of AnophelesC. stomach of female AnophelesD. stomach of male Anopheles. |
| Answer» Correct Answer - A | |
| 47. |
Which life function is carried on by a Paramecium but not by a neuron ?A. SynthesisB. AbsorptionC. RegulationD. Locomotion |
| Answer» Correct Answer - D | |
| 48. |
Most Paramecia inhabitA. fresh waterB. sea waterC. brackish waterD. land |
| Answer» Correct Answer - A | |
| 49. |
Auxospores and hormocysts are formed respectively byA. several diatoms and a few cyanobacteriaB. several cyanobacteria and several diatomsC. some diatoms and several cyanobacteriaD. some cyanobacteria and many diatoms |
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Answer» Correct Answer - A (a) Auxospores and hormocysts are formed by several diatoms and a few cyanobacteria respectively. Bacillariophyceae members (diatoms) are microscopic, eukaryotic, unicellular of colonial coccoid algae. These algae are sexually reproduced by the formation of auxospores in most cases. Bozi (1914) and Fermi (1930) reported that short sections of living cells att the tips of the trichomes of Wertiella lanosa become invested by a thick, lamellated, pigmented sheath. Such multicellular spore like structures function as perennating bodies. They are specially modified hormogones and are called hormospores or hormocysts. |
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| 50. |
In which group of organisms the cell walls form two thin overlapping shells which fit together?A. ChrysophytesB. EuglenoidsC. DinoflagellatesD. Slime moulds |
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Answer» Correct Answer - A (a) Chryosophytes are placed under the kingdom- Protista. This group includes diatoms and golden algae (desmids). Most of tthem are photosyntetic. In diatoms, the cell walls form two thin overlapping cells, which fit together as in a soap box. |
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