0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com Answer all the questions. Underline the most appropriate answer. Correct answer = +1 Wrong answer = -1 Duration : 45 minutes 1. A type of agranular white blood corpuscle i) Lymphocyte ii) Basophils iii) Leukocyte iv) Thrombocyte 2. Read the following statements A – Chlorophyll in the chloroplasts produces glucose B – Mitochondria produce energy C – Ribosomes attached to the endoplasmic reticulae produce proteins D – Chromosomes are responsible in transmitting hereditary characteristics The things can be seen in plant cells and also in animal cells i) ii) iii) iv) A only B, C, D only A and B only A, B, C and D all 3. An animal that can be classified as reptile i) Water snake ii) Eel iii) Otter iv) Salamander 4. The epithelium found in the walls of alveoli can be also seen in i) Oesophagus ii) Trachea iii) Capillaries iv) Arteries 5. Select the correct statement regarding 17 35X element i) There are 18 electrons ii) There are 35 protons iii) The last energy level has 5 electrons iv) There are 35 nucleons 0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com 6. The enzymes function in acidic medium i) Tripsine, pepsine ii) Amylase, lipase iii) Tripsine, rennin iv) Renin, pepsin 7. Not an excretory product i) Feaces ii) Urine iii) Sweat iv) Water vapour 8. Not a property of ionic compound i) Conducts electricity in fused states and in aqueous state ii) Soluble in polar solvent iii) High melting point and high boiling point iv) Has neutral molecules in an aqueous solution 9. Glucose is completely re-absorbed in i) Bowman’s capsule ii) Henle’s loop iii) Proximal convoluted tubule iv) Glomerulus 10. The tissue with cells having Life Polygonal shape Inter cellular air spaces i) ii) iii) iv) Collenchymas Parenchyma Schlerenchyma Xylem 11. Which of the following may cause varicose veins i) Deposition of cholesterol in the arteries ii) Weakening of the valves in the veins iii) Losing the elasticity of the arteries iv) Hypertension 0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com 12. What does not occur during inspiration in humans i) Intercostal muscle will contract ii) Diaphragm contacts iii) Ribs move out wards and upwards iv) Air enters the alveoli through the buccal cavity 13. Substances not found in glomerular filtrate are i) Proteins and vitamins ii) Salts and vitamins iii) Blood cells and proteins iv) Blood cells and salt 14. The disease which affects the erythrocyte i) Dengue ii) Leukaemia iii) Malaria iv) Hypertension 15. An atom having an electronic configuration of 2,8,4 belongs to i) Group III, Period 4 ii) Group II, Period 4 iii) Group IV, Period 3 iv) Group II, Period 3 16. A protein digestive enzyme is i) Tripsin ii) Renin iii) Amylase iv) Lipase 17. Urine is filtered in the i) Collecting tubule ii) Bladder iii) Kidney iv) Nephron 18. A disease associated with the respiratory system i) Tuberculosis ii) Hepatitis iii) Nephritis iv) Thrombosis 0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com 19. The person having which blood group can take blood from any blood group i) A ii) B iii) AB iv) O 20. Not an excretory product i) Sweat ii) Faeces iii) Carbon dioxide iv) Bile pigments 21. The substance that completely re-absorbed into blood from the glomerular filtrate is i) Salt ii) Glucose iii) Urea iv) Salt 22. Urea excreted by kidneys, is formed in the i) Liver ii) Bladder iii) Kidney iv) Nephron 23. What is the feature an arecanut plant posses i) Having a tap root system ii) Having no flowers iii) Having an unbranched trunk iv) Having webbed veins 24. The classes that sea horse and bats respectively belong to i) Pisces, mammal ii) Mammal, aves iii) Reptilia, aves iv) Both are mammals 25. The atomic number of an element is 19. The number of ‘e’ in its outer most energy level is (1) 1 (2) 9 (3) 18 (4) 19 0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com 26. Following are some features stated about the element a. b. c. d. 63 29X Its mass number is 63 Its atomic number is 63 The number of neutrons in its atom is 29 The number of electrons in its atom is 29 Which of the above statements are correct? (1) a and c only (2) b and c only (3) a and d only (4) b and d only 27. There are 11 ‘p’ and 12 ‘n’ in an atom of the element Na. Which is the standard way? (1) 28. 12 11 Na Particles A B C D E (2) 11 12 Na (3) No. of protons 17 18 19 20 20 23 11 Na (4) No of neutrons 20 20 20 20 22 11 23Na No of electrons 18 18 18 20 20 The isotopes are (1) A and B 29. (4) A, B, C and D (2) B (3) C (4) D The neutral particle / particles is / are (1) B only 31. (3) D and E A positive ion is (1) A 30. (2) A, B and C (2) D only (3) B and D only (4) B, D and E only In the atoms of two elements found in the same period of the periodic table, i) ii) iii) iv) number of electrons is equal number of protons is equal number of neutrons is equal number of energy levels is equal 0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com 32. Element X Y p 16 16 e 16 18 n 18 17 Three statements regarding the above X and Y atomic species are given below (A) the atomic numbers of X and Y are equal (B) the atomic mass of X and Y are equal (C) the electronic configurations of X and Y are equal Out of the statement, the correct one/ones is/are (1) A only (2) B only (3) C only (4) A and C only 33. A type of multi nucleated cell i) Epithelial cell ii) Smooth muscle iii) White blood cell iv) Skeletal muscle 34. A characteristic common to both cardiac and smooth muscle is i) being striated ii) being non striated iii) becoming tired soon iv) being involuntary 35. Element H O Cl Atomic Number (a) 8 17 Mass Number 1 (b) 35 Protons Neutrons 1 8 (c) 0 8 18 The numbers that can take place of (a), (b), and (c) in sequence in the above table are (i) (ii) (iii) (iv) 1, 8, 17 1, 16, 35 1, 16, 17 0, 16, 17 0755 27 93 17 Channa.Asela@RoyalThomian.info 0714 820 596 www.OLscience.com Select from the choices given below the process that helps best explain the phenomena, mentioned in questions 36, 37 and 38 (A) Diffusion (B) Osmosis (C) Active Absorption (D) Ascent of Sap 36. Entry of soil water into root hairs i) A ii) B iii) C iv) D 37. Entry of digested food into the blood capillaries within the mammalian intestine i) A ii) B iii) C iv) D 38. Passing of water vapour from the air spaces within the leaves, into the atmosphere i) A ii) B iii) C iv) D 39. Which answer contains the elements that attain noble – gas configuration by removal of electrons only i) H, Li, C ii) Na, K, Ca iii) H, F, Cl iv) C, O, N 40. A mono atomic gas is i) Nitrogen ii) Oxygen iii) Carbon Dioxide iv) Helium