Top 100 Important Everyday Science Mcqs Set-8 21- In anaerobic respiration, the net gain of ATP per glucose molecule oxidized is: A. 2B. 4C. 6D. 30 View Answer Answer : A. 2 Description 22- The largest planet in our solar system is: A. SaturnB. JupiterC. UranusD. Neptune View Answer Answer : B. Jupiter Description 23- The source of immediate energy for cellular activity is: A. ATPB. NADC. RNAD. FAD View Answer Answer : A. ATP Description 24- The part of the cell which is essential for protein synthesis is: A. RibosomeB. ChloroplastC. Golgi bodies D. Chromosomes View Answer Answer : A. Ribosome Description 25- At what stage of cell division does synapsis take place? A. PachyteneB. DiploteneC. LeptoteneD. Zygotene View Answer Answer : D. Zygotene Description 26- Which of the following helps in intracellular digestion? A. LysosomesB. Golgi apparatusC. Plasma membraneD. Endoplasmic reticulum View Answer Answer : A. Lysosomes Description 27- Cytoplasmic bodies in the centrioles are: A. KinetochoresB. Basal bodies C. DictyosomesD. Microtubules View Answer Answer : D. Microtubules Description 28- Which of the following is an exception to 'Cell Theory'? A. VirusB. LichensC. FungiD. Bacteria View Answer Answer : A. Virus Description 29- Rigidity of cell wall is due to: A. PectinB. SuberinC. ChitinD. Lignin View Answer Answer : D. Lignin Description 30- The plastids which make the flowers and fruits conspicuous to animals for pollination and dispersal are: A. LeucoplastsB. ChromoplastsC. ChloroplastsD. None of these View Answer Answer : B. Chromoplasts Description 31- Which of the following nitrogenous bases is found only in RNA and not in DNA? A. UracilB. ThymineC. GuanineD. Adenine View Answer Answer : A. Uracil Description 32- Cell plate formation during cytokinesis (division of cytoplasm) takes place due to the action of: A. Lysosomes and mesosomes B. Endosomes and mitochondria C. Golgi bodies and endoplasmic reticulumD. Lysosomes and endoplasmic reticulum View Answer Answer : C. Golgi bodies and endoplasmic reticulum Description 33- The genetic code can be translated through an intermediate, adaptor molecule by: A. ATPB. mRNAC. rRNAD. tRNA View Answer Answer : D. tRNA Description 34- The metal ion involved in stomatal regulation in plants is: A. IronB. PotassiumC. ZincD. Magnesium View Answer Answer : B. Potassium Description 35- Which of the following theories as regards the origin of life on earth is accepted today? A. Cosmologic theory B. Theory of abiogenesisC. Theory of special creation D. Theory of spontaneous generation View Answer Answer : B. Theory of abiogenesis Description 36- The earth's atmosphere was __________ in nature. A. ReducingB. OxidizingC. NeutralD. None of these View Answer Answer : A. Reducing Description 37- Which of the following groups of scientists provided experimental proof to the abiotic origin of life? A. Miller and UreyB. Oparin and HaldaneC. Weismann and LamarckD. Lamarck and Darwin View Answer Answer : A. Miller and Urey Description 38- Who amongst the following is the proponent of the theory of Natural Selection? A. LamarckB. Charles DarwinC. Hugo-de-VriesD. Gregor Mendel View Answer Answer : B. Charles Darwin Description 39- The species to which we belong is: A. Homo sapiensB. Homo erectusC. Australopithecus robustus D. None of these View Answer Answer : A. Homo sapiens Description 40- Which of the following animals resembles most to human beings in terms of physical and mental capabilities? A. LangurB. Rhesus monkeyC. GorillaD. Chimpanzee View Answer Answer : D. Chimpanzee Description 1 2 3 4 5
