Question 1Which of the following structures is capable of producing more tissues in the stem of a herbaceous flowering plant?A.epidermisB.pericycleC.xylemD.cambiumObjective Show full explanation
Question 2The manufacture of carbohydrates by plants takes place only in A.the leavesB.the green stemsC.chlorphyllus partsD.flowering plantsObjective Show full explanation
Question 3In water culture experiment, a plant showed poor growth and yellowing of the leaves. These may be due to deficiency of A.copperB.ironC.magnesiumD.calcium. Objective Show full explanation
Question 4In Million's test, when a reagent is added to a protein food item, a white precipitate is produced which turnsA.blue on heatingB.yellow on heatingC.green on heatingD.red on heatingObjective Show full explanation
Question 5Regulation of blood sugar level takes place in theA.pancreasB.ileumC.liverD.kidneyObjective Show full explanation
Question 6Unicellular organisms transport essential nutrients directly to all parts of their bodies by the process of diffusion because they haveA.a large surface area ratioB.a large surface area to volume ratioC.their bodies immersed in the nutrientsD.their outer membrane made of celluloseObjective Show full explanation
Question 7The heart of the adult frog consists ofA.two auricles and two ventriclesB.one auricle and one ventricleC.two ventricles and one auricleD.one ventricle and two auriclesObjective Show full explanation
Question 8In adult mammalian blood, the cells, which lack nuclei are theA.erythrocytesB.lymphocytesC.leucocytesD.phagocytesObjective Show full explanation
Question 9Which of the following movements occur during exhalation?A.the diaphragm and intercostats muscles relaxB.the thoracic cavity and the intercostal muscles relaxC.the diaphragm and intercostal muscles contractD.the diaphragm contract and the intercostats muscles relaxObjective Show full explanation
Question 10In which of the following groups of animals is the Malphigian tubule found?A.lizards, snakes, and frogsB.crickets, houseflies and grasshoppersC.millipedes, centipedes and scorionsD.earthworms, roundworms and flatwormsObjective Show full explanation