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HIMACHAL PRADESH MAR 2008 : Biology

3 pages, 48 questions, 2 questions with responses, 2 total responses,

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BIOLOGY (THEORY) Time : 3 hrs 1) 2) 3) M.M. 70 Candidates are required to give their answers in their own words as far as practicable. Marks allotted to each question are indicated against it. You must write question paper series in the circle at top left side of title page of your answer book. Special Instruction: 1) While answering your questions you must indicate on your answer book the same question No. as appears in your paper. 2) Do not leave blank page / pages in your answer book. 3) All the questions are compulsory and are divided into four sections. An internal choice has been made in 3 questions of two marks, 2 questions of three marks and 2 questions of five marks. Attempt only one of the choice in such questions. 4) Question Nos. 1-5 are of one mark each. There are total 7 multiple choice questions. 5 out of 7 are in section A and remaining 2 are in section D. 5) Questions 6-15 are of two marks each. Answer them in 20-30 words. 6) Questions 16-25 are of three marks each. Answer them in 30-60 words. 7) Questions 26-28 are of five marks each. Answer them in 80-120 words. 1) 2) 3) 4) 5) Section - A Who gave five kingdom system of classification. a) Carolus Linnaeus b) Robert Brown c) R.H. Whittaker d) C. Golgi 1 Which of the following tissue in plants is responsible for conduction of water. a) Epithilial Tissue b) Phloem c) Xylem d) None of these. 1 Which of the following are organelle is called as protein factory of the cell. a) Ribosome b) Mitochondria c) Chloroplast d) Nucleus 1 Sweet Potato is a modification of a) Stem b) Root c) Leaf d) None of these. 1 Which of the following is the vestigeal organ in human alimentry cannal. a) Liver b) Vermiform Appendix c) Rectum d) Large intestine 1 Biology (Theory) 48 +1 6) 7) 8) Section - B What is meant by double circulation? Give its significance. OR Give diagrammatic representation of Nephron. 2 Define the following terms. a) Mycorrhiza b) Parasite 2 c) Lichen d) Karyogamy Write down the main functions of mitochondria. OR Write down the functions of Nucleus. 2 9) Differentiate between open and closed vascular bundle. 2 10) Why transpiration is considered as necessary evil? OR Differentiate between Transpiration and Guttation? 2 11) a) b) Differentiate between Endocrine and Exocrine glands. What do you understand by Heterocxine gland. 1+1=2 12) Write brief note on biological nitrogen fixation. 2 13) Define Enzyme. How the enzyme enhance the rate of biochemical reaction ? 2 14) 15) Define the following terms: i) Tetradidynamous ii) Actinomorphic flower iii) Gamopetlous flower iv) Polyadelphous condition ( + + + = 2) Write down the general characters of phylum Annelida. 2 Section - C 16) a) b) Write down the criteria to assign scientific name to an organism. Which cell organellae is called as Sucidal bag of the cell. (2+1=3) 17) Draw well labelled Transverse Section ( T.S.) of Dicot root. 3 18) Describe along with diagram prophase -I of meosis I. 3 19) Differentiate between cyclic and non-cyclic Photophosphorylation. OR Biology (Theory) 49 +1 20) Why C4 plants are considered more efficient in photosynthesis. Explain the following terms. a) Residual volume. b) Total lung capacity c) Tidal volume. 3 1+1+1=3 21) Why the Abicissic acid is known as stress hormone? 3 22) Bile doesn t have any Enzyme. How it helps in the digestion. OR Explain the mechanism of muscle contraction. 3 23) Differentiate between RNA and DNA. 3 24) Explain the process of conduction of nerve impulse along the nerve fiber. 3 25) What do you understand by photoperiodism? Explain Short day Plant, Long day plant and Day neutral plants. 3 Section - D 26) a) b) a) b) 27) 28.) a) b) a) b) Explain the fluid mosaic model of cell membrane. Write down the functions of Carbohydrates. OR What do you understand by Enzyme inhibition. Explain various types of Enzyme inhibition. Differentiate between Eukaryotic cell and Prokaryotic cell. (3+2=5) Give the schematic diagram of Glycolysis. Name the Excretory organ of i) Cockroach ii) Earthworm iii) Human beings iv) Flat warm Draw the internal structure of Human Heart. OR Draw the structure of Human eye. RQ for Carbohydrate is i) 0.5 ii) 1.0 iii) 1.5 3 ( + + + = 2) 3 iv) 0.75 1 c) Longest bone in the human body is a) Tibia b) Fibula c) Humerus d) Femur 1 Biology (Theory) 50 +1

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Additional Info : Model Question Papers Of Plus One Examination March 2008 Biology (Theory)
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