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Sample Paper 2013 Class X Subject Biology Time: 1 hrs Total marks: 80 General Instructions The question paper is divided into two sections Section A and Section B Attempt all questions from Section A.(20 marks) For Section B follow the given instructions:There are a set of 8 questions in Section B Choose any six questions from this section. Make best use of graphs, charts, diagrams, etc for your answers. Section A (20 marks) Question 1 a)Give appropriate name / technical term /biological name for the following questions: 1. The specific structure in sperms (only) that initiates and regulates cell division. 2. The defect caused by abnormal functioning of valve connecting left auricle and left ventricle. 3. Condition when there is excess accumulation of water in the body. 4. The specific part of brain concerned with stereoscopic vision. a) Name the following :marks ] 1. The period after which a zygote is termed a morula. 2. Cells of the body that activates the lymphocytes. 3. Another name for toxoids. 4. The radius of eyeball. 5. The biological term for myocardial infarction. 6. The main nerve connecting spinal cord and stomach. [3 b) State true or false and correct the statements by altering the underlined words :1. Arachnoid is a meninges. 2. Pituitary gland weighs 0.7 g to 0.8 g. 3. Cretinism is a genetic disorder. 4. Sperms remain alive in female reproductive system for about 6-7 days. [2 marks ] www.icseguess.com Other Educational Portals www.cbseguess.com | www.ignouguess.com | www.aipmtguess.com | www.aieee.com | www.niosguess.com | www.iitguess.com
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