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ICSE Biology paper for class 10

6 pages, 85 questions, 8 questions with responses, 8 total responses,    0    0
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BISHOP COTTON BOYS SCHOOL :: BANGALORE SECOND TERM EXAMINATION :: DECEMBER :: 2010 SUBJECT : BIOLOGY STD :X MARKS : 80 DATE : 14.12.2010 TIME : 1 Hr. 30 Mins. You will not be allowed to write during the first FIFTEEN 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. The intended marks for question or parts of question are given in brackets [ ]. Answer any FOUR questions from Section-B THIS PAPER CONTAINS 6 PRINTED PAGE. SECTION - A [Attempt all questions from this section] I. (a) Name the following: 1. The type of immunity received from vaccination. 2. The pigment which gives colour to the urine. 3. The pituitary hormone which stimulates egg formation. 4. The hormone that can cause an increased flow of blood to skeletal muscles. 5. The curve obtained when the number of individuals in a population are plotted against the time. [5] (b) Select the correct answer out of the four available choices given under each question. [5] 1. Which of the following enters plant cells by active transport? (a) CO2 2. (b) NO3 (c) O2 In an osmosis experiment , four potato strips , each 5 cm. in length , were left in salt solutions of different concentrations. The table shows length of the strips after 30 minutes .Which salt solution was the most concentrated? Salt solution a b Length of strips after 30 minutes 4.8 cm 4.5 cm c d 3. (d) H2O 5.3 cm 5.0 cm The retinal layer in the eye is an example of (a) An organ in an organ system (c) (b) An organ in a tissue (d) Std.10/ 2010 2011 /2nd Term Examn../Sub : Biol./1 An organ system in an organ A tissue in an organ

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