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BIOLOGY PAPER

4 pages, 73 questions, 65 questions with responses, 90 total responses,

Sahil Meher
St. Anne's Convent School (SACS), Sonepur, Subarnapur

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.-\ar ST. ANNE,S CONVENT SCHOOL, SONEPUR HALF-YEARLY EXAMINATION 2014 3,. Give one FM-100 CLASS-X SUB- BIOLOGY word for the following [10] (50 MARKS) a, The tiny pores on leaves through which transpiration occurs' b. An apparatus to compare the rate of transpiration in cut shoots' c. The energy currency of the cell. d. A chemical used to test starch. e. Site of light reaction. f. g. h. the $rowflsubstance present in a chloroplast' An oxygen carrying pigment in blood pressure. Contraction of heart chambers. i. j. Circulation between heart and lungs. An instrument used to record blood pressure. 2. a. Tick the correct (4)) The water is transported up the leaves through I ) Cortex cells iii)Xylem b. choice ii) Parenchyma iv) Phloem Potometer is used to study in Plants. Respiration ii) Photosynthesisiii) Rate of uptake of water iv) Rate of photosynthesis Oxygen evolved during photosynthesis comes from I ) co2 ii) H2O lll) Co2 and H2o I) c. d. lv ) Salts Part of brain associated with thinking and reasoning is i) 3. Cerebellum ii) Pons iii) Cere brum iv) Medulla oblongata Give one function of the following. (10) a. Bowman's capsule b. Renal pelvis c. d. e. 4. Ureters Kidneys Urinary bladder Write true or False (6j a. Veins have a large lumen. b. Biscuspid valve is present between c. Lymphocytes right atrium and right ventricle. are phagocytic in Function. d. Coronary circulation refers to circulation e. Dark reaction takes place in dark f. Lymph flows tissues to heart in the heart. 5. Fill in the blanks :- (5) a. Blood platelets release b. Arteries have at the place of injury. walls and c. Pulmonary artery carries lumen. blood from right ventricles to the 6 .Differentiate between (10) \ a. Grey matter and white matter b. Rods and cones c. Blind spot and yellow spot d. Natural and acquired reflex e. Aqueous humour and vitreous humour 7 .Mark the odd one out : (5) a, Renal pelvis, renal cortex , renal medullae, renal pappiillae b. Afferent arteriole, Henle's loop, vasarectae efferent arteriole. Glomerular filtration, antidiuretic hormone, hypertonic urine , collecting duct. Proximal convoluted tubule, distal corpu scte /a,(,/z , dun'( lo%wilu., c. d. e. Descending limb of Heml;e's loop, hyper tonic urine, reabsorption of water, ascending limb of Hemal's loop. SECTION.II (s0 MARKS ) Answer any 5 questions :l. |-/' ,{ -/'-" p. A leaf was coated with cobalt chloride paper on both surfaces.@ b. What will be the colour of cobalt chloride paper after an hour.[1] c. The paper on which surface will show changes first.[1] d. Define the process named above [2] Nanz 'tk B. Tztlz-Url' Study the diagrani given above and answer a. What is the content of these drops.[1] b. Name this phenomenon[1] c. Give reason for this phenomenon[2] d. Name the specific place on the leaves where these drops can be seen [1] /{e/&h/sqo 2. A./ a. What is guttation ?[2] b. What is bleeding ?.[2] c. Name a plant that has surd<en stomata[1] B, The k-- foliowing diagram is a set-up to demonstrate an experiment. (5) Light Dim light .Dark -+l j ',.i weed Water Study the diagram and answer the following questions : (give the number of the tube) a. ln which tube would you expect the greatest increase in dry weight of pond weed ? b. ln which tube would you expect to find the plant with least amount of starch ? c. The tube in which most oxygen would be found is d. The tube in which least carbondioxide would be found. e. The tube in which the plant would survive fen the shortest length of time is. // .fiake sentences and write the correct sequence of blood clottlng by using the words given below(B) A. Fibrinogen, Thrombin, Thrombo plastin, Ca ++, Fibrin ,blood clot, prothrombin, blood platelets. B, I )Name the membrane that encloses the heart ii) What is the other name of bicuspid valve(1) (1) l{ / ia r'is4 I list' 4. Fill up the arrow diagram given below with the correct words from the blood, oxygenated blood, right afrium, right ventricle, pulmonary artery ' pulmonary vein, left atrium, left ventricle inferior vena cava ) (B) A. ( Deoxygenated il Superior vena cava I I t iii + lungs body I 1 'a iv I I Aorta B. i) <- Atrium Name the area of origin of heart beat in man'(1) ii) Name the smallest blood vessel'(1) bfine the following : (10) a) Synapse b) Reflex action c) PhotophosporYl ation d) Guttation e) Double circulation a" O..zfframe the most widely accepted theory for ascent of sap.(1) b ) List two factors C) that increase rate of transpiration'(2) What is the full form of RuBP(1-) e. f, o b. Mention two reasons for mYoPia (2) Name the ear ossicles (3) Give the location of Organ of corti. (1)

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