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ICSE Class X Mid-term 2021 :Biology (Lakshdham High School,Goregoan East, Mumbai)

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Premanand Maishal
Lakshdham High School (LHS), Mumbai

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LAKSHDHAM HIGH SCHOOL SECONDARY SECTION PRE-BOARD PRACTICE EXAM (2020-2021) SUBJECT: SCIENCE PAPER III- (BIOLOGY) GRADE : X DATE : 3-2-2021 MARKS : 30 TIME : 1 Hr ___________________________________________________________________________ Answers to this Paper must be written on the foolscap sheet. You will not be allowed to write during the first 15 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. Attempt all the questions from Section A and Section B. The intended marks for questions or parts of question are given in the brackets [ ]. Question paper consists of [3] pages. Kindly write It is honourable to fail than to cheat on the first page of your answer sheet (foolscap). Section A Q.1 A Fill in the blanks. (15 Marks) (5 marks) 1.The cytoplasmic projections of the cell body are called _________________. 2. Each spinal nerve is a ___________ nerve having both sensory and motor fibres. 3. __________are the breakdown products of the haemoglobin of the dead RBCs. 4. The functional unit of excretion in the kidneys is a ______________. 5. Concentration of the urine by water reabsorption is controlled by ______ hormone. 1 B. Name the following. (5 marks) 1. Sheet of fibres connecting the two cerebral hemispheres. __________ 2. Pigment providing colour to urine. __________ 3. The collective term for the membranes covering the brain. __________ 4. Hormone which stimulates sympathetic nervous system. __________ 5. The junction between two nerve cells. __________ C. Match the columns A and B. (5 marks) A B a. Formation of urea b. Conditioned reflex c. Basic unit of the brain d. Natural reflex e. Controls body temperature 1. Neuron 2. Hypothalamus 3. Swallowing 4. Liver 5. Playing on a musical instrument Ans. 1. _____ 2. ______ 3. ______ 4. ______ Section B 5. _______ (15 Marks) Q.2 Observe the diagram given below and answer the following questions. (5 marks) 1. Label the parts numbered 1, 2, 3 and 4. 2. Give the function of part numbered 1, 2 and 3. 2 Q.3 Observe the diagram given below and answer the following questions. (5 Marks) 1. Name the parts numbered 1-4. 2. State the function of part numbered 3 and 4. 3. State the constituents of urine. Q.4 Answer the following questions. (5 marks) 1. Draw a neat and labelled diagram of Malpighian capsule. 2. State the number of pairs of cranial nerves and spinal nerves. 3. Explain the term reflex arc. 3

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