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CLASS X BIOLOGY PRE BOARD 2017-2018(Sri Sri Academy)

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Harsh Kumar
Sri Sri Academy (SSA), Kolkata
1st to 10th Science

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Time: 2 Hours SRI SRI ACADEMY PRE BOARD EXAMINATION SESSION 2017-2018 CLASS X Subject: - Biology (Science Paper 3) Max Marks 80 GENERAL INSTRUCTIONS: Answer to this paper must be written on the paper provided separately. You will not be allowed to write during 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 answers. Attempt all questions from Section I. Answer 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: (i) The mucous membrane lining the uterus. (ii) The hormone secreted during first sign of pregnancy. (iii) The pollutant which reduces oxygen carrying capacity of blood. (iv) The first vaccine to be given to a new born exactly around 21 days after birth. (v) The process by which foetal abnormalities can be diagnosed. [5] (b) Define the following biological terms: (i) Haematuria. (ii) Guttation. (iii) Vasectomy. (iv) Antibiotics. (v) Implantation [5] (c) State the main function of the following: (i) Amniotic Fluid. (ii) IUCD.(iii) Lachrymal gland. (iv) Semilunar Valves. (v) Sunken stomata [5] (d) Give the exact location of the following: (i) Acrosome. (ii) Central canal. (iii) Uracil (iv) Basilar membrane. (v) Seminiferous tubules. [5] (e) State whether the following statement are true or false. If False rewrite the correct form of the statement by changing either the first or last word only [5] (i) Kidney converts ammonia into urea in the human body. (ii) Menstruation is the attainment age of sexual maturity in human females. (iii) Fertilization takes place in the human uterus. (iv) Testosterone is an androgen. (v) Erythrocytes plays a major role during blood clotting. (f) Identify the relationship between 1st and 2nd word and then similarly write the 4th word which forms the relationship with the 3 rd word.: [5] (i) Emergency hormone: Adrenaline :: Calorigenic hormone : ____________. (ii) Male : Condom :: Female : _____________. (iii) Cadmium : Itai- itai Disease :: Mercury : _____________. (iv) 5th -12th Day : Follicular Phase ::14th-28th Day : ____________________. (v) Rate of Water Uptake by Plants: Potometer :: Blood Pressure : ____________. P.T.O

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