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ICSE Prelims 2019 : Biology (Don Bosco Senior Secondary School, Vaduthala, Kochi, Ernakulam)

6 pages, 88 questions, 66 questions with responses, 75 total responses,    0    0
Tiara Elizabeth
Indian Certificate of Secondary Education (ICSE), New Delhi
10th
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___________________________________________________________________________ BIOLOGY SCIENCE Paper 3 (Tow 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: (i) The hormone that releases glucose into the blood. (ii) The place where implantation occur in the female reproductive system. (iii) The statistical study of the human population of a region. (iv) A neurotransmitter stored at the terminal end of the axon. (v) Introduction of weakened pathogens in the body. [5] (b) State whether the following statements are true or false. If false, rewrite the correct form of the statement by changing the first word only: [5] (i) (ii) (iii) (iv) (v) Hyposecretion of thyroxine causes Grave s disease. Alpha cells of the pancreas secrete insulin. Vasectomy is the surgical method of sterilization in men. Natality Rate is the number of deaths of the given population per year. Antiseptics are strong chemicals used for killing germs. (c) Choose the correct alternative from the choices given below each statement so as to complete its meaning: [5] (i) A reflex arc in man is best described as movement of stimuli from a) Receptor cell, sensory neuron, relaying neuron, effector muscles b) Receptor cell, efferent nerve, relaying neuron, muscles of the body. c) Receptor cell, Spinal cord, motor neuron, relaying neuron. d) Receptor cell, synapse, Motor neuron, relaying neuron. 1 ICSE (Grade : X) | BIOLOGY (SCIENCE Paper-3) | Pre Board Exam-II

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