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ICSE Class X Prelims 2021 : Biology (St. Helena's School and Junior College, Pune)

4 pages, 20 questions, 1 questions with responses, 1 total responses,    1    0
Lakshmi S
St. Claret School, Debpukur, Sewli - Telinipara, Kolkata
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PUNEST.HELENA" HIGH SCHOOL 2021 JANUARY PRELIMINARY EXAM. BIOLOGY (SCIENCE PAPER 3) Date: 10/02/2021 TIME:2 HRS. cLASS X M.MARKS: 80 allowed for writing the answers INSTRUCTiONS; The time given this paper is the time at the head of four questions from from section 1 and any all questions for questions Attempt or parts The intended marks are of questions section given in brackets[ Section- (40] marks from this sectio Attempt all questions QUESTION1 Name the following: AIThe 1] laver of the eyeball 2] A pair of corresponding parent 31 The compound 4 The number S] The wax like of that provides the eye. shaDe and sire and derived nourishment to chromosomes of the same one rom tac blood. combines with carbondioxide in formed when haemoglobin a human being chromosomes present in a nerve cell of layer on the transpiration. epidermis of leaves which reduces answer from each of 18 Choose the correct nerves in a human the four options given below; 15) are being 1)The number of spinal B) 10 pairs C 21 pairs D] 30 pairs A) 31 pairs 2) Aqueous humour is present between the Iris and lens C] Cornea 3] While recording the pulse rate, where exactly does A) Nerve B] Vein C)Artery D] Capillary 4 Amuscular wall is absent in A Lens and retina AF Capillary B] B] Venule C] Arteriole and iris D} Cornea and lens a doctor press on our wrist D] Vein 5] Chromosomes get aligned at the center of the cell during AJ Metaphase BJAnaphase C] Prophase D]Telophase C) Match the items given in column A with the most appropriate ones in column B and rewri S the correct matching pairs cOLUMN AA COLUMN B al hypersecretion of adrenal cortex 1]Cretinism 2]Diabetes insipidus 3]Exopthaimic goiter b] hyposecretion of thyroxine c] hyposecretion of growth hormone 4]Adrenal virilism d 5]Dwarfism el hypersecretion of growth hormone f hypersecretion of thyroxine hyposecretion of vasopressin [D]State whether the following statements are TRUE OR FALSE. If false, rewrite the correct statementS 1] Deafness is caused due to the rupturing of the pinna. 2] Gyri 3] and sulci are the A convex folds of cerebellum. lens is used to correct myopia. 4] White matter contains cell bodies of neurons. 5] Cochlea of the human ear is concerned with the sense of balance.

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