Question 1The micronucleus of paramecium is primarily involved in ____A.heredity and reproductionB.growthC.metabolismD.feedingObjective Show full explanation
Question 2____ carry impulse from the main nervous system towards a gland.A.motor nerveB.effectorsC.responseD.muscleObjective Show full explanation
Question 3The interaction of different kinds of organisms that occur together at a particular place is called ____A.ecosystemB.communityC.biomeD.ecologyObjective Show full explanation
Question 4The presence of two distinct types of nuclei is called ____A.nuclear metamorphosisB.nuclear dimorphismC.nuclear polymorphismD.nuclear reactionObjective Show full explanation
Question 5____ is the site of information processingA.central nervous systemB.peripheral nervous systemC.celebral hemisphereD.dicephalonObjective Show full explanation
Question 6The set of organisms together with the non-living factors with which it interacts is ____A.ecologyB.communityC.biomeD.ecosystemObjective Show full explanation
Question 7Which of the following does not exist as a single living cell?A.chlamydomonasB.euglenaC.endorinaD.amoebaObjective Show full explanation
Question 8Muscles or glands which on receiving impulse from the brain or spinal cord contract or secrete substancesA.effectorsB.responseC.receptorsD.nerveObjective Show full explanation
Question 9Spirogyra, Euglena and Chlamydomonas share many characteristics except ____A.nutritionB.reproductionC.mobilityD.irritabilityObjective Show full explanation
Question 10A wave of electrical disturbance that travels across the nerve cell and its fibres ____A.sensoryB.nerveC.motorD.impulseObjective Show full explanation
Question 11Inbreeding endangers a small population than a large populationA.trueB.falseC.undecidedD.a and bObjective Show full explanation
Question 12Which of the following organisms exists as a filament?A.euglenaB.volvoxC.eudorinaD.spirogyraObjective Show full explanation
Question 13An agent that results in the change of the activities of the organism is ____A.stimulusB.impulseC.responseD.nerveObjective Show full explanation
Question 14The portion of the cell cycle in which the condensed chromosomes are not visible ____A.chiasmataB.metaphaseC.interphaseD.prophaseObjective Show full explanation
Question 15Anaerobic respiration in yeast produces ____A.carbondioxide and ethanolB.carbondioxide and waterC.carbondioxide and glucoseD.ethanol and waterObjective Show full explanation
Question 16Change in the activity of the organism is due to which stimulusA.glandB.neuronsC.motorD.responseObjective Show full explanation
Question 17Mammals that lay eggs are calledA.marsupialB.amphibiansC.plancentalD.monotremesObjective Show full explanation
Question 18The following animals have four chambers in their heart exceptA.lizardB.manC.goatD.dogObjective Show full explanation
Question 19The following living organisms are eukaryotic exceptA.spirogyraB.amoebaC.bacteriaD.volvoxObjective Show full explanation
Question 20Animals which have true body cavity are referred to asA.coelomateB.acoelomateC.choelomateD.pseudocoelomateObjective Show full explanation
Question 21The following are cold blooded animals exceptA.lizardB.toadC.duckD.snakeObjective Show full explanation
Question 22Annelids are commonly calledA.roundwormsB.ringwormsC.flatwormsD.wrinkle wormsObjective Show full explanation
Question 23The end product of glycolysis isA.citric acidB.pyruvic acidC.malic acidD.acetic acidObjective Show full explanation
Question 24Anaerobic respiration in yeast producesA.carbondioxide and ethanolB.carbondioxide and waterC.carbondioxide and glucoseD.ethanol and waterObjective Show full explanation
Question 25Stomata pores open when there isA.an increase in the sugar content of guards cellsB.a decrease in osmotic concentration of guards cellsC.a decrease in the sugar content of mesophyll cellsD.an increase in the sugar content of mesophyll cellsObjective Show full explanation
Question 26A ____ sphincter controls the rate of flow of chime the stomach into the small intestine.A.cardiacB.pyloricC.pylocardiacD.cardiacObjective Show full explanation
Question 27The parotid gland is found in theA.small intestineB.rectumC.mouthD.colonObjective Show full explanation
Question 28Bile is involved in the digestion ofA.proteinB.fatC.glucoseD.carbohydrateObjective Show full explanation
Question 29Major digestion of food takes place within theA.liverB.small intestineC.colonD.none of the aboveObjective Show full explanation
Question 30_____ is the organ responsible for the production of insulinA.gastric glandB.pancreasC.duodenumD.liverObjective Show full explanation
Question 31Hydrochloric acid is found inA.sputumB.rectumC.colonD.none of the aboveObjective Show full explanation
Question 32_____ is the semi-liquid found in the stomach.A.chimeB.cylliC.chymeD.chileObjective Show full explanation
Question 33The submaxillary gland belong to a group of glands found in theA.stomachB.small intestineC.mouthD.all of the aboveObjective Show full explanation
Question 34Deamination is a process that is carried out in theA.liverB.colonC.ileumD.pancreasObjective Show full explanation
Question 35If a cell is placed in a solution of higher concentration, the solution is said to beA.hypotonicB.isotonicC.maltonicD.hypertonicObjective Show full explanation
Question 36The scientist who first made an attempt to classify living things is calledA.Carl LinneausB.Charles DarwinC.AristotleD.TheodorObjective Show full explanation
Question 37The system of giving a two-word name to an organism is calledA.polynomial nomenclatureB.dinomial normenclatureC.binomial nomenclatureD.biennial normenclatureObjective Show full explanation
Question 38Scientific names are written in what language?A.GermanB.LatinC.EnglishD.GrammarObjective Show full explanation
Question 39Which of these types of skeleton is most appropriate to the cockroach?A.hydrostatic skeletonB.exoskeletonC.endoskeletonD.cartilaginous skeletonObjective Show full explanation
Question 40Proteins are broken down to provideA.oxygenB.carbohydrateC.energyD.amino acidsObjective Show full explanation
Question 41The function of the lenticels isA.to receive excess water in the plantB.to absorb water from atmosphereC.for gaseous exchangeD.to absorb lightObjective Show full explanation
Question 42One of the functions of xylem isA.strengthening the stemB.manufacturing foodC.conducting manufactured foodD.none of the aboveObjective Show full explanation
Question 43People suffering from myopiaA.can see near objects clearlyB.can see far awayC.cannot see any objects clearlyD.are colour-blindObjective Show full explanation
Question 44The cilia in paramecium are used forA.respirationB.locomotionC.protectionD.excretionObjective Show full explanation
Question 45The study of the organisms and the environment of an abandoned farmland is the ecology of ____A.a communityB.a populationC.a speciesD.an ecosystemObjective Show full explanation
Question 46At fertilization ____A.one chromosomes from the male combines with the gene from another femaleB.one gene from the male combines with the gene from another femaleC.the male nucleus fuses with the female nucleusD.one set of chromosomes combines with another the female set from the femaleObjective Show full explanation
Question 47The neck region of the tapeworm (Tapeworm spp) is responsible for theA.the production of eggsB.the storage of eggsC.the formation of new segmentsD.the development of the suckersObjective Show full explanation
Question 48Which of the following is characteristic of the animal cell?A.presence of chloroplastsB.possession of cellulose cell wallC.absence of large vacoulesD.presence of large vacoulesObjective Show full explanation
Question 49In the life history of Schistosoma (Bilharzia), one of the following is the intermediate hostA.manB.snailC.mosquito larvaD.fishObjective Show full explanation
Question 50The hormones which tones up the muscles of a person in the time of danger is from theA.thyroid glandB.pancreaseC.adrenal glandD.spleenObjective Show full explanation