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SECOND PRELIM EXAMINATION 2015-16 Std: X Date: 11 /01 /2016 Subject: BIOLOGY Marks: 80 Dur. : 2 Hr SECTION I (40 Marks) Attempt all questions from this Section Question 1 (a) (i) (ii) (iii) (iv) (v) (b) (i) (ii) (iii) (iv) (v) (c) (i) (ii) (iii) (iv) (v) (d) (i) (ii) (iii) (iv) (v) (e) (i) (ii) (iii) (iv) (v) Name the following: The pollutant responsible for acid rain. The ear ossicle attached to the oval window. The part of the brain associated regulation of body temperature. The hormone that stimulates thyroid. The process of conversion of ADP to ATP during photosynthesis. 5 State whether the given statements are True or False. If false, rewrite the false 5 statement correctly by changing the underlined word only. The alpha cells of the pancreas secrete insulin. Mitosis is a method of cell division taking place in the germinal cells of the body. The number of autosomes in man is 22. Penicillin obtained from a fungus is an example of an antibody. Plants that manufacture their own food are called Autotrophs. Pick out the odd term in the given group of terms and state the Common Category to which the remaining terms belong: 5 Loop of Henle, DCT, glomerulus, bowman s capsule, PCT Intelligence, memory, maintain balance, consciousness, voluntary actions Stroma, grana, fret, stoma, thylakoid Prostate gland, Seminal vesicles, tear gland, Cowper s gland, bulbourethral glands Black spot, ciliary body, Pupil, tympanum, cornea Rewrite and complete the following sentences by inserting the correct word in the space indicated. 5 _______ vaccine is given to build up immunity against polio. A fluid that occupies the larger cavity of the eye ball behind the lens is _______. Wooden doors warp during monsoons due to the process of ____________. The stage of mitosis during which the nuclear membrane disappears is________. The main nitrogenous waste excreted by kidneys is __________. Put the given group of terms in logical sequence based on the criteria given in the bracket. 5 oviduct, urethra, seminiferous tubule, vagina, uterus.( path of sperm) Karyokinesis, S-phase, Cytokinesis, G1 phase, G2 phase (Cell cycle) Intercellular space, mesophyll cells, stoma, xylem, substomatal chamber (Stomatal transpiration) Left auricle, lungs, pulmonary artery, right ventricle, pulmonary vein (Pulmonary circulation) Plasmolysis, water, Deplasmolysis, exosmosis, 10% NaCl, (Deplasmolysis) Page 1 of 5
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