Question 0The functions of endoplasmic reticulum isA.protein synthesisB.intracellular transport of materialsC.digestion and destruction of foreign bodiesD.production of energy from glucoseE.Objective Show full explanation
Question 0Which of the following features of euglena is found only in animals?A.Paramylum granulesB.FlagellumC.PellicleD.PyrenoidE.Objective Show full explanation
Question 0An organism found on a bare rock surface has features of algae and fungi. The organism isA.an epiphyteB.a lichenC.a bryophyteD.a fernE.Objective Show full explanation
Question 0In a plant exhibiting alternation of generations, the diploid multicellular stage is known asA.gametophyteB.spermatophyteC.holophyteD.sporophyteE.Objective Show full explanation
Question 0A characteristic that distinguishes bryophytes from flowering plants is theA.possession of true stems and leavesB.ability to reproduce asexuallyC.absence of vascular tisssuesD.ability to grow in moist habitatsE.Objective Show full explanation
Question 0A good example of a disploblastic bryophytes from flowering plants is theA.ameobaB.hydraC.earthwormD.round wormE.Objective Show full explanation
Question 0The function of the clitellum in the earthworm is toA.aid digestionB.prevent desiccationC.assist locomotionD.secrete cocoonE.Objective Show full explanation
Question 0The crayfish is an arthropod becauseA.its body consist of a cephalothorax and an abdomenB.it has a pair each of antennae and antennulesC.every segment of its body carries a pair of appendagesD.its body is covered with an exoskeleton made of chitinE.Objective Show full explanation
Question 0The hypha of Rhizopus is said to be non septate because itA.does not contain chlorophyllB.has no cross wallsC.is vacuolatedD.stores oil globulesE.Objective Show full explanation
Question 0In most true ferns sporangia are grouped intoA.indusiumB.frondsC.prothalliD.sariE.Objective Show full explanation
Question 0In the reproduction of mosses, water is essential becauseA.they live in moist habitatsB.they cannnot reproduce without waterC.the male ganetes must swim to fertilize the ovumD.they produce sporesE.Objective Show full explanation
Question 0In tapeworm, the two structure that run throughout the length of the body are theA.nerve cord and excretory ductB.sperm duct and the nerve cordC.genital pore and the excretory ductD.sperm duct and the genital poreE.Objective Show full explanation
Question 0Which of the following is not a characteristics of snail?A.Bilateral symmetryB.Chitinous exoskeletonC.Muscular footD.soft unsegmented body in mantleE.Objective Show full explanation
Question 0In the life history of butterfly, destruction of crops is caused by theA.maggotB.nymphC.caterpillarD.pupaE.Objective Show full explanation
Question 0The correct sequence of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside isA.pith, phloem, cambium, xylem, parenchyma, collenchyma and epidermisB.xylem, phloem, cambium, cortex, endodermis, collenchyma and epidermisC.pith, xylem, cambium, phloem, collenchyma, parenchyma and epidermisD.phhloem, xylem, cambium, cortex, endodermis, collenchyma and epidermisE.Objective Show full explanation
Question 0Secondary thickening is initiated in a dicotyledonous stem by theA.xylem parenchymaB.secondary phloemC.endodermisD.cambiumE.Objective Show full explanation
Question 0In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened toA.prevent alga growth in culture solutionB.allow root growthC.prevent breakdown of mineral elementsD.prevent photosynthesis in the rootE.Objective Show full explanation
Question 0The vitamin which is important in the formation of the retina pigment isA.vitamin AB.vitamin BC.vitamin CD.vitamin DE.Objective Show full explanation
Question 0Which of the following lists of organs is directly involved in nutrition?A.Oesophagus, bronchus, stomach, pancreas and anusB.spleen, pharynx, duodenum, jejunum and rectumC.Teeth, oesophagus, ileum lungs and large intestineD.Salivary gland, liver, stomach, villi and colonE.Objective Show full explanation
Question 0In the standard experiment to show that oxygen is given off during photosynthesis, sodium bicarbonate is used toA.neutralize the acid in waterB.supply mineral salt to water plantC.supply carbondioxide for photosynthesisD.kill micro-organisms in waterE.Objective Show full explanation
Question 0One cubic centimeter of lymph is richer than an equal volume of blood inA.erythrocytesB.leucocytesC.amino acidD.glucoseE.Objective Show full explanation
Question 0The oxidative part of the respiratory process takes place in theA.mitochondriaB.ribosomesC.endoplasmic reticulumD.golgi bodiesE.Objective Show full explanation
Question 0Fatigue of leg muscles may occur after riding many kilometers on a bicycle because ofA.insufficient glucoseB.excess carbon dioxideC.excess proteinD.insufficient oxygenE.Objective Show full explanation
Question 0The function of the loop of Henle is toA.increase the flow of urineB.concentrate amino acids in the kidney tissueC.concentrate sodium chloride in the medulla of the kidneyD.increase the volume of urineE.Objective Show full explanation
Question 0Sclerenchyma cells are lignified toA.strengthen and support the plantB.transport synthesized foodC.conduct water and saltD.protect the plant from injuryE.Objective Show full explanation
Question 0The pineapple fruit is best described asA.aggregate, succulent and indehiscentB.aggregate, succulent and dehiscentC.multiple, succulent and indehiscentD.multiple, succulent and dehiscentE.Objective Show full explanation
Question 0A flower showing radial symmetry is said to beA.pentamerousB.protandrousC.protogynousD.actinomorphicE.Objective Show full explanation
Question 0A samara differs from a cypsela by havingA.an extended pericarpB.a hard pericarpC.a pericarp fused with seed coatD.some hairy outgrowth on the pericarpE.Objective Show full explanation
Question 0The plantain reproduces asexually byA.suckersB.budsC.fragmentsD.sporesE.Objective Show full explanation
Question 0Growth can best be determined in a population of Spirogyra by measuring theA.total length of the filamentB.total widths of the filamentsC.rate of photosynthesis in the populationD.dry weights of the organismE.Objective Show full explanation
Question 0Most cells in higher animals retain their power of division EXCEPTA.lymphocytesB.nerve cellsC.malpighian cellsD.germ cellsE.Objective Show full explanation
Question 0A severe deficiency of thyroxin results inA.diabetes mellitusB.sexual underdevelopmentC.cretinismD.gigantismE.Objective Show full explanation
Question 0The growth of a coleoptile towards unilateral light source is due toA.rapid rate of photosynthesisB.unequal distribution of auxinC.the effect of geotropismD.the effect of photolysisE.Objective Show full explanation
Question 0The sequence of ear ossicles from the fenestra ovalis isA.malleus, incus and stapesB.malleus, stapes and incusC.stapes, incus and malleusD.stapes, malleuls and incusE.Objective Show full explanation
Question 0The center for controlling body temperature in the brains is theA.cerebrumB.cerebellumC.medullaD.hypothalamusE.Objective Show full explanation
Question 0Unlike auxins, gibberellinsA.induces the formation of adventitious rootsB.do not affect leaf and fruit abscissionC.cannot stimulate stem elongationD.are quite effective as herbicidesE.Objective Show full explanation
Question 0A gene which expresses itself only in the homozygous condition isA.a mutantB.dominantC.recessiveD.lethalE.Objective Show full explanation
Question 0An example of monohybride inheritance in man isA.astigmatismB.cretinismC.hyperthyroidismD.albinismE.Objective Show full explanation
Question 0If a plant homozygous for round and yellow (RR : YY), is crossed with a wrinkle green type (rr : yy) all of the resulting seeds will beA.blue and wrinkledB.round and yellowC.wrinkled and yellowD.round and greenish yellowE.Objective Show full explanation
Question 0The ratio of carriers to sicklers in the F1 generation derived from a parental cross of two carriers of haemoglobin S gene isA.3 : 1B.1 : 3C.2 : 1D.1 : 2E.Objective Show full explanation
Question 0In which of the following crosses will all the female offspring be colour blind?A.colour blind mother x colour blind fatherB.colour blind mother x normal fatherC.carrier mother x colour blind fatherD.carrier mother x normal fatherE.Objective Show full explanation
Question 0Which of the following relates to edaphic factors?A.The structure of the earth's surfaceB.The influence of living organisms on each otherC.Temperature, rainfall and humidityD.The influence of soils on plant and animalsE.Objective Show full explanation
Question 0Epiphytes growing on the branches of trees provide an example of the relationship known asA.parasitismB.commensalismC.saprophytismD.holophytismE.Objective Show full explanation
Question 0Poliomyelitis is an infectious diseases caused byA.virusB.protozoanC.bacteriumD.fungusE.Objective Show full explanation
Question 0One of the functions of UNICEF is toA.prevent and control major diseaseB.prevent diseases outbreak by administering vaccinesC.improve the health and nutrition of children and nursing mothersD.monitir enviromental pollutionE.Objective Show full explanation
Question 0Nitrifying bacteria are important because theyA.release nitrogen to the atmosphereB.convert atmospheric nitrogen to ammoniaC.combine ammonia with nitrgenD.oxidize ammmonium salt to nitratesE.Objective Show full explanation
Question 0The process by which lime is added to clay soil is known asA.sedimentationB.flocculationC.leachingD.manuringE.Objective Show full explanation
Question 0Which of the plants is likely to have broad leaves and thin cuticleA.RB.SC.TD.UE.Objective Show full explanation
Question 0Which of the plants is likely to be desert species?A.UB.TC.SD.RE.Objective Show full explanation
Question 0The flower shown above isA.complete, regular, hermaphroditic with superior ovaryB.incomplete, regular, staminate with inferior ovaryC.complete, regular, hermaphroditic with inferior ovaryD.incomplete, irregular, pistillate with superior ovaryE.Objective Show full explanation