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LOKHANDWALA FOUNDATION SCHOOL TERMINAL EXAMINATION -2020-21 SUBJECT :- BIOLOGY Grade :- 10 Duration : 2 hrs. Date :- 9-10-2020 Max. Marks: 80 __________________________________________________________________________________ General Instructions: Keep 10-15 A-4 size ruled sheets ready along with a scale, pencil, eraser and at least two black pens. You can use a black ball pen or waterproof gel pen to write. Write your name, roll number, class with section and page number on every sheet. Every sheet should be numbered on both sides. There should be a margin on both sides of the paper. Scan and staple the sheets in proper sequence as soon as you finish writing and keep them safely. General Instructions: 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 A and any four questions from Section B. The intended marks for questions or parts of questions are given in brackets [ ].This paper consists of 5 printed sides. ___________________________________________________________________________________ SECTION A (40 marks) (Compulsory) Question 1 A. Give scientific term for: i. The liquid part of blood devoid of blood cells and fibrinogen. ii. Pressure of the cell content on the cell wall. iii. Permanently open structures seen on the bark of an old woody stem. iv. The hormones which target other endocrine glands. v. Gland present at the base of eye lashes. [5] B. Choose the correct answer from the options given: [5] i. A cell has five pairs of chromosomes. After mitotic division, the number of chromosomes in the daughter cells will be a.five b.ten c. twenty d. forty ii. The sound Lub is produced in the heart when a. Tricuspid and Bicuspid valve closes b. Mitral valve opens c. Semilunar valve closes d. Tricuspid valve closes iii. Water will be absorbed by the root hair when a. Concentration of the salts in the soil is high. b. Concentration of the solutes in the cell sap is high. c. The plant is rapidly respiring. d. They are separated from the soil by semi permeable membrane. iv Which of the blood vessel in humans carries with it maximum concentration of glucose? a. Hepatic vein b. Portal vein c. Renal artery d. Hepatic artery v. Junction between two neurons is a. Joint b. Synapse c. Terminal ending d. Synapsis vi. Each nephron has a cup shaped upper end called ___________, which contains a _________. a. Bowman s capsule, ampulla b. Capillaries, Bowman s capsule c. Ampulla, Glomerulus d. Bowman s capsule, Glomerulus vii. After meiotic cell division a human female gamete will have a. 44+ XX b. 44 + XY c. 22+ X d.22+ Y
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