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RAJKUMAR COLLEGE, RAIPUR (C.G) FIRST PRELIMINARY EXAMINATION 2016 -17 BIOLOGY SCIENCE Paper 3 (Two Hours) Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the Question Paper. The time given at the head of this Paper is the time allowed for writing the answers. Attempt all questions from Section I and any four questions from Section II. The intended marks for questions or parts of questions are given in brackets [ ]. SECTION I (40 Marks) Attempt all questions from this Section Question 1. a. Name the following: [5] i. The condition of a cell placed in hypertonic solution. ii. The pressure that assists bleeding in plant. iii. Any one vein which starts from an organ and ends in another organ and ends in another organ besides the heart. iv. The part of human brain which controls body temperature. v. The hormone which stimulates the entire sympathetic nervous system. b. State the main function of the following: i. ii. iii. iv. v. [5] Amnion Seminiferous tubules Chromosomes Xylem Eustachian tube c. The statements given below are false. Rewrite the correct form of statement by changing the word which is underlined. [5] i. Eutrophication in lakes is due to pesticides. ii. Salk s vaccine is used to bring immunity against malaria. iii. Mortality is the number of death per thousand of the population per decade. iv. Oxytocin is water retaining hormone. v. Kidney produces urea.

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