BABSc, B.Com & BCA Questions _III - Nalanda Open University

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(a) Grenth curve (b) Auxin (c) Imbibition (d) Plasmolysis ` (e) Phototropism. 10. Give an account of glycolysis of aerobic respiration.
Nalanda Open University Annual Exam-2010, Bachelor of Science (Botany) Hons, Part-III Paper-VI Time: 3Hrs Full Marks: 75 Answer any five questions. Question no. 1 is compulsory. All questions are of equal marks. 1. Multiple Choice Questions: (xvi) The cycling of mineral element in an ecosystem is called: (a) Biological Cycle (b) Chemical cycle (c) Geological (d) Biochemical Cycle. (xvii) The term ecosystem was coined by: (a) Tansley (b) Odum (c) Ernst Haeckel (d) Ramdeo Mishra (xviii) Hydrological cycle is under the control of: (a) Aquatic animal (b) Grassland (c) Parasites (d) Forest (xix) The cycle of life, death and decay involving organic nitrogenous mater is known as: (a) Sulphur cycle (b) Nitrogen cycle (c) Carbon cycle (d) Hydrological cycle (xx) Water logging occurs in: (a) Sandy soil (b) Gravel soil (c) Loamy (d) Clay soil (xxi) Pedology is the study of: (a) Soil degradation (b) Soil formation (c) Rock formation (d) Locomotion of animals (xxii) The removal of soil by the action of water and wind is known as: (a) Erosion (b) Salinaton (c) Fossilization (d) Emulsification (xxiii) The plant can absorb nitrogen in the form of: (a) Nitrates (b) Nitrous oxide (c) Molecular nitrogen (d) all the above (xxiv) The best soil for healthy and vigorous growth of most plant is: (a) Sandy soil (b) Loam (c) Clay (d) None of these (xxv) The main nitrogen reservoir in the biosphere is: (a) Oceans (b) rocks (c) Organisms (d) atmosphere (xxvi) The plant can absorb nitrogen in the form of: (a) nitrate (b) ammonia (c) Molecular nitrogen (d) all of the above (xxvii) Pedology is the study of (a) Soil degradation (b) Soil formation (c) Rock formation (d) Locomotion of animals. (xxviii) MAB stand for (a) Man and Biology (b) Man and biotic community (c) Man and Biosphere (d) None of the above (xxix) Hydrological cycle is under the control of (a) Aquatic animal (b) Grassland (c) Parasites (d) Forest (xxx) Water logging occurs in: (a) Sandy soil (b) Grave soil (c) Loamy soil (d) Clay soil 2. Write an essay on the biochemical cycle of nitrogen. 3. What is ecosystem? What are the various components of an ecosystem? 4. What is soil? How it is formed?
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BABSc, B.Com & BCA Questions _III - Nalanda Open University

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