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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.
| 101. |
Macrocyst formation occurs in cellular slime moulds duringA. Unfavourable conditionsB. Asexual reproductionC. Sexual reproductionD. Formation of pseusopodium |
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Answer» Correct Answer - C Macrocyst formation is a product of sexual reproduction of slime moulds. During formation of macrocyte a myxamoeba grows in size and function as a female gamete. It attracts a number of male gametes, But, only one male gamete fuses with the female gamete. The fusion product is known as zygote. The zygote secretes a thick wall covering and is called macrocyst. The two nuclei fuse in the macrocyst forming single diploid nucleus. |
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| 102. |
In Amoeba , contractile vacuole is presentA. Near the trailing endB. Near the advancing endC. At the middle of bodyD. Anywhere inside the body |
| Answer» Correct Answer - A | |
| 103. |
The function of contractile vacuole is increased whenA. It is needed to remove waste productsB. It has stopped feedingC. The cell membrane is permeable to waterD. The concentration of water outside is higher than that inside. |
| Answer» Correct Answer - C | |
| 104. |
Xanthophytes areA. Yellow green algaeB. Unicellular and coccoidC. having many discoid chromatophoresD. All options are correct |
| Answer» Correct Answer - A | |
| 105. |
Identify the statement which is incorrect about euglenoids.A. The apical end of the organism has an invagination, which bear a mouth, canal and reservoirB. The eyespot present on the anterior of the body contains the pigment fucoxanthin.C. In the absence of light they behave as heterotrophsD. The reserve food material is stored in cytoplasm as paramylon granules |
| Answer» Correct Answer - B | |
| 106. |
Identify the statement which is incorrect about Gonyaulax?A. It is an armoured dinoflagellateB. Its mesokaryon is large and subtorminalC. It reproduces by binary fissionD. It produces a patent neurotoxin called saxitoxin |
| Answer» Correct Answer - B | |
| 107. |
Assertion : Giardia is called Grand old man of the intestine. Reason: Giardia is a protozoan parasite.A. Both Assertion and Reason are true and Reason is the correct explanation of assertion.B. Both Assertion and Reason are true, but Reason is not the correct explanation of assertionC. Assertion is true, but Reason is falseD. Assertion is false, but Reason is true |
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Answer» Correct Answer - B A protozoan, Giardia is commonly nicknamed as the grand old man of the intestine. It is a diplomonadied parasitic flagellate occuring in man and other animals. Giardia intestinalis is a parasite of small intestine of man and it stays there for a long period. Thus, it is called grand old man of the intestine. |
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| 108. |
Select the correct combination of characteristics for slime moulds.A. Parasitic, spore dispersal by water, plasmodium with wallsB. Saprophytic, spore dispersal by air currents, plasmodium without wallsC. Parasitic, spore dispersal by air current, plasmodium without wallsD. Saprophytic, spore dispersal by water , plasmodium with walls |
| Answer» Correct Answer - B | |
| 109. |
Shivering with cold, i.e. the attack of the disease is epxerienced by a patient of malaria whenA. Merozoites and toxic substances are released in its blood on completion of an erythrocytic cycleB. State of high fever has subsidedC. Patient is very weakD. Cold wind is blowing |
| Answer» Correct Answer - A | |
| 110. |
Which of the following is not correct with respect to malariaA. RBCs rupture and release haemozoin which causes chills.B. Sporozoites multiply in bloodC. Female anopheles mosquito is the vectorD. Malignant malaria is caused by plasmodium falciparum |
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Answer» Correct Answer - B During the life cycle of plasmodium, sporozoites multiply in liver cell, not in blood. |
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| 111. |
Identify the characteristics features of diatomsA. Cell wall is made of cellulose, floating om water and produce auxosporesB. Cell wall is made of chitin, fixed form and produce auxoporesC. Cell wall is made of silica, floating on water and produce auxosporesD. Cell wall is made of silica symbiots and produce zoospores |
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Answer» Correct Answer - C Diatoms are major group of unicellular eukaryotes. They have a unique silica cell wall comprising of two separate valves (shells). Diatoms produce auxospores, which are involved in re-etablishing the normal size. This occurs each daughter cell produced by cell division inherits one of the two valves that makes up the frustule (a silica cell wall ) and then grows a smaller valve within it. |
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| 112. |
Which structure is formed at the time of time of exchange of gamete nuclei in given animal during sexual reproduction? A. Cytoplasmic bridgeB. Cytoplasmic filamentsC. Internal tubuleD. Plasmodesmata |
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Answer» Correct Answer - A Paramecium reproduces sexually by lateral conjugation in which cytoplasmic bridge is formed between male and female individuals. |
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| 113. |
Green phytoplankton are kept in which kingdom of five kingdom classification systemA. Kingdom - MoneraB. Kingdom - ProtistaC. Kingdom - PlantaeD. Kingdom - Fungi |
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Answer» Correct Answer - B Green phytoplanktons are photosynthetic and have chloroplast for carrying out photosynthesis. Since these are unicellular eukaryotic organisms, they are placed in kingdom - protista, e.g. Chlorella, Chlamydomonas, etc. |
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| 114. |
Euglenoid movement refers toA. Flagellar locomotionB. Ciliary locomotionC. MetabolyD. Mucilage propulsion |
| Answer» Correct Answer - C | |
| 115. |
The storage product in Euglena (green euglenoid) isA. GlycogenB. OilC. ParamylumD. Chrysolaminarin |
| Answer» Correct Answer - C | |
| 116. |
The eyespot or stigma of euglena occurs at the attachment of the membranes ofA. Contractile vacuoleB. CytopharynxC. ReserviorD. Both b and c |
| Answer» Correct Answer - C | |
| 117. |
Diatoms resemble dinoflagellates in havingA. Contractile vacuoleB. FlagellaC. FucoxanthinD. Lipids |
| Answer» Correct Answer - C | |
| 118. |
The source of food in the ocean for other animals areA. DinoflagellatesB. EuglenoidsC. DiatomsD. None of these |
| Answer» Correct Answer - C | |
| 119. |
The mode of asexual reproduction in dinoflagellates is/areA. Cell divisionB. CystsC. SporesD. All of these |
| Answer» Correct Answer - D | |
| 120. |
Naked cytoplasm, multinucleated and saprophytic are the characteristics ofA. MorenaB. ProtistaC. FungiD. Slime moulds |
| Answer» Correct Answer - D | |
| 121. |
Gametic meiosis occurs inA. DiatomsB. Acellular slime mouldsC. NoctilucaD. All of these |
| Answer» Correct Answer - D | |
| 122. |
The alga/protist used for the construction of sound proof room isA. DiatomsB. CharaC. VolvoxD. Fucus |
| Answer» Correct Answer - A | |
| 123. |
A symbiotic protist isA. PlasmaodiumB. LophomonasC. FuligoD. Trypanosoma |
| Answer» Correct Answer - B | |
| 124. |
Which of the following is a luminiscent protist?A. NaviculaB. AmoebaC. ElphidiumD. Noctiluca |
| Answer» Correct Answer - D | |
| 125. |
Which species of protist are known as the whirling whips because of the spins produced by two flagella beating in opposing grooves along their hard surfaced bodies?A. Golden brown algaeB. ChrysophytesC. DiatomsD. Dinoflagellates |
| Answer» Correct Answer - D | |
| 126. |
Slime moulds haveA. Cell wallB. ChlorophyllC. Numerous diploid nucleiD. All of these |
| Answer» Correct Answer - C | |
| 127. |
Slime moulds are included in protista, otherwise these areA. PlantsB. FungiC. AlgaeD. Bacteria |
| Answer» Correct Answer - B | |
| 128. |
Bioluminescence was first recorded inA. GonyaulaxB. PeridiniumC. NoctilucaD. Pyrodinium |
| Answer» Correct Answer - C | |
| 129. |
Which of the following is not a ciliophora?A. ChromidinaB. TetrahymenaC. EuglenaD. Balantidium |
| Answer» Correct Answer - C | |
| 130. |
Mepacrine and paludrine are effective in treatment ofA. Amoebic dysenteryB. MalariaC. AscariasisD. Taeniasis |
| Answer» Correct Answer - B | |
| 131. |
Entamoeba histolytica is a human parasite usually found inA. IntesineB. LiverC. BloodD. None of these |
| Answer» Correct Answer - A | |
| 132. |
The small, spherical, non-motile and non-feeding form of entamoeba histolytica isA. MinutaB. CysticC. SporuletsD. Magna |
| Answer» Correct Answer - A | |
| 133. |
Entamoeba histolytica has no need forA. FeedingB. GrowthC. OsmoregulationD. Reproduction |
| Answer» Correct Answer - C | |
| 134. |
The minuta form of Entamoeba histolytica differs from amoeba proteus in havingA. One pseudopodium formed of ectoplasmB. One pseudopodium formed of endoplasmC. No food vacuolesD. Small contractile vacuole |
| Answer» Correct Answer - B | |
| 135. |
Choose the option with the correct statements about entamoeba histolytica. I. It causes amoebic dysentery in man. II. Its adult form is called trophozoite. Its infection occurs chiefly in spleen and liver. IV. It belongs to phylum - Mastigophora.A. I and IIB. III and IVC. I and IIID. II and IV |
| Answer» Correct Answer - A | |