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ICSE Class X Sample / Model Paper 2024 : Biology

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Lalith Naidu
Vidya Jyothi School, Kolar

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ICSE 10TH BIOLOGY SAMPLE PAPER 6 PAGE 1 Sample Paper 6 ICSE Class X 2023-24 Biology Science Paper - 3 Time: 2 Hours Max. Marks: 80 General Instructions: 1. Answer to this Paper must be written on the paper provided separately. 2. You will not be allowed to write during first 15 minutes. 3. This time is to be spent in reading the question paper. 4. The time given at the head of this Paper is the time allowed for writing the answers. 5. Section A is compulsory. Attempt any four questions from Section B. 6. The intended marks for questions or parts of questions are given in brackets [ ]. SECTION - A (Attempt all questions from this Section.) QUESTION 1. Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answer only.) (i) (ii) Root hairs contain ............... (a) Salt (c) Cell sap (b) water (d) Minerals Guttation mainly occurs during ............... (a) Hot weather (c) Windy day (b) Dry weather (d) warm humid weather (iii) The circular opening in the centre of iris : (a) Lens (b) Cornea (c) Sclera (d) Pupil (iv) International ozone day is on (a) 11th July (b) 16th August (c) 5th June (d) 16th September ICSE 10TH BIOLOGY (v) SAMPLE PAPER 6 PAGE 2 The opening of right auricle into the right ventricle is guarded by (a) bicuspid valve (b) tricuspid valve (c) aortic semi-lumar valve (d) Pulmonary semi-lunar valve (vi) Assertion (A) The mineral essential for the functioning of the thyroid gland is iodine. Reason (R) Use of iodised salt in food is recommended because iodine is the active ingredient in the production of thyroxine. (a) Both Assertion and Reason are true (b) Both Assertion and Reason are false (c) Assertion is true and Reason is false (d) Assertion is false and Reason is true (vii) Population of World in 2012 was approximately (a) 4 million (c) 2 billion (b) 7 billion (d) 10 million (viii) Excretion process involves (a) (b) (c) (d) removal of nitrogenous waste removal of bile pigments removal of by products of anabolism and catabolism All of the above (ix) The child frightened by the loud noise, runs quickly to his mother. Which substance helps in this response? (a) Insulin (c) Amylase (x) (b) Adrenaline (d) Protease Angina pectoris is due to (a) defective nutrition (b) defective functioning of mitral valve (c) infection by a virus (d) chest pain due to inadequate supply of oxygen to the heart muscle (xi) Which of the following descriptions of mitosis is/ are correct? (a) (b) (c) (a) (c) DNA synthesis occurs at the beginning of prophase. The nuclear envelope breaks down in prophase and reforms in telophase. The division of centromeres occurs in anaphase. 1, 2 and 3 (b) Only 1 and 2 Only 2 and 3 (d) Only 1 (xii) In tropic movements, plant parts move (a) (b) (c) (d) away from the stimulus either towards or away from the stimulus only towards water towards the stimulus ICSE 10TH BIOLOGY SAMPLE PAPER 6 PAGE 3 (xiii) Darwin s theory of evolution fails to explain the (a) role of environment (c) origin and transmission of variations (b) overproduction (d) survival of the fittest (xiv) Which of the following might you find in the backbone of DNA? (a) (b) (c) (a) (c) Phosphate group Hexose sugar Adenine 1, 2 and 3 2 only (b) 1 only (d) 1 and 2 (xv) Hepatic portal system starts from (a) kidney to liver (c) digestive system to liver (b) liver to heart (d) liver to kidney QUESTION 2. (i) Name of following: (a) The main nitrogenous waste in man. (b) The pressure exerted by cell contents on a plant cell wall. (c) Number of pairs of autosomes in humans. (d) The disease caused by iodine deficiency. (e) The membrane covering the brain and spinal cord. (ii) Arrange and rewrite the terms in each group in the correct order so as to be in a logical sequence beginning with the term that is underlined. (a) Cytokinesis, G2-phase, Karyokinesis, S-phase. (b) Reabsorption, Filtration, Secretion, Excretion. (c) Eardrum, Sound wave, Vibration, Impulse. (d) Loss of water, Transpiration, Stomata closed, Stomata flaccid. (e) Sensory neuron, Receptor, Spinal cord, Motor neuron. (iii) Fill in the blanks with suitable words. Blood platelets are produced in (a) ...............Their average life is (b) ................. They get destroyed in the (c) .................... They initiate (d) .............. at the site of bleeding. They produce (e) .......... which in the presence of calcium converts prothrombin of plasma into thrombin. Continue on Next Page... ICSE 10TH BIOLOGY SAMPLE PAPER 6 PAGE 4 (iv) Choose the odd one out from the following terms and name the category to which others belong. (a) Glucocorticoids, Mineralocorticoids, Glucagon, Sexocorticoids. (b) Thrombin, Fibrinogen, Thrombosis, Fibrin. (c) Loudspeaker, Amplifier, Music, Dust. (d) Needles, Dressings, Slringes, Pesticides. (e) Oil spills, Kitchen waste, Detergent, Excreta. (v) Match the items given in Column I with the most appropriate ones in Column II and rewrite the correct matching pairs. Column I Column II A. Insulin 1. Oversecretion of GH B. Hyperthyroidism 2. b -cells ol islets of Langerhans C. Gigantism 3. Exophthalmic goitre D. Glucagon 4. lncreases heartbeat E. Adrenaline 5. Undersecretion of GH 6. a -cells of islets of Langerhans 7. Cretinism SECTION - B (Attempt any four questions.) QUESTION 3. (i) What is meant by emasculation in plants? (ii) State the difference between autosomes and sex chromosomes. (iii) What is crossing over? (iv) What is genetic disease? Name two genetic diseases. (v) There is a 50-50% chance for getting a male or female child. Justify the above statement Continue on Next Page... ICSE 10TH BIOLOGY SAMPLE PAPER 6 PAGE 5 QUESTION 4. (i) How many days are required for the maturation of sperms ? (ii) State the functions of ovary. (iii) Briefly explain the term hormone. (iv) Difference between Excretion and Egestion (v) State the difference between identical and fraternal twins. QUESTION 5. (i) Write down the difference between Photolysis and Photophosphorylation. (ii) Enumerate the steps involved in testing a green leaf for the presence of starch. (iii) Mention three adaptations found in plants to reduce transpiration. (iv) Though plants do not have a nervous system, yet they perform all physiological activities comment. (v) Explain carbon cycle. QUESTION 6. (i) What is cornea ? (ii) The given diagram shows a stage during mitotic division in an animal cell : (a) Identify the stage. Give a reason to support your answer. (b) Draw a neat labelled diagram of the cell as it would appear in the next stage. Name the stage. Continue on Next Page... ICSE 10TH BIOLOGY SAMPLE PAPER 6 PAGE 6 (iii) Study the diagram given below which represents a stage during the mitotic cell division and answer the questions that follow : (a) Identify the stage giving suitable reasons. (b) Name the parts numbered 1 and 2. (iv) (a) What is meant by scotoactive stomata? Give an example. (b) What is meant by compensation point? (v) Given below is an outline of the human body showing the important glands. (a) Name the glands marked 1 to 5. (b) Name the hormone secreted by 2. Give one important function of this hormone. (c) Name the endocrine cells present in part 3. QUESTION 7. (i) Distinguish between homo erectus and Homo habilis (cranial capacity). Continue on Next Page... ICSE 10TH BIOLOGY (ii) SAMPLE PAPER 6 PAGE 7 Taking example of giraffe, explain use and disuse of organs. (iii) Write difference between Blood Plasma and Serum? (iv) What is induced abortion? (v) Given below is the diagram of an apparatus set up to study a very important physiological process. Study the diagram and answer the questions that follows. (a) Name the process being studied. (b) What change would you observe in the thistle funnel containing sugar solution after about l0 minutes? (c) Name the part of the plant cell which is represented by the sugar solution. QUESTION 8. (i) Define hypotonic solution. (ii) Write down the difference between Pulmonary artery and Pulmonary vein Continue on Next Page... ICSE 10TH BIOLOGY SAMPLE PAPER 6 PAGE 8 (iii) The diagram given below represents a defect of vision of the human eye : (a) Name the defect. (b) What is the effect of this defect on man ? (iv) How does sewage treatment plants reduces pollution? (v) The diagram below represents a certain category of blood vessels showing the role of special structure in their walls: (a) Name the kind of blood vessels shown. (b) Name the structure shown inside the blood vessels. (c) Describe the role of these structures. ******* Pre Board Sample Papers Exam Feb 2024 ICSE Class 10th Biology Click PDF Icon and Download Sample Papers 30 Sets If you are not able to click papers, please see last page of this PDF Biology Paper 1 Paper Solution Biology Paper 3 Paper Solution Biology Paper 5 Paper Solution Biology Paper 7 Paper Solution Biology Paper 2 Paper Solution Biology Paper 4 Paper Solution Biology Paper 6 Paper Solution Biology Paper 8 Paper Solution Download Chapterwise Previous 20 Years Exam Question Bank Questions Worksheet and Solutions Biology Paper 9 Paper Solution Biology Paper 10 Paper Solution Biology Paper 11 Paper Biology Paper 12 Solution Biology Paper 13 Paper Paper Solution Biology Paper 14 Solution Paper Solution Get all Subject Sample Papers Click Below to Join our Whatsapp Channel Biology Paper 15 Paper Biology Paper 16 Solution Biology Paper 17 Paper Solution Biology Paper 18 Solution Biology Paper 19 Paper Paper Paper Solution Biology Paper 20 Solution Paper Solution Add Whatsapp ChatBot Number 94142 43489 In your class Whatsapp group to get all subjects. Sample papers will be sent in your class whatsapp group. ICSE Pre Board Sample Papers Class 10th Exam 2024 Click your subject and Download 20 Set Sample Papers File is not opening after click or touch ? What to do ? If sample paper file is not opening after click or touch, it means links doesn t work in you mobile PDF opening app. It seems that your mobile has WPS office, in which links doesn t work. Open this file in Google Drive only. / ? PDF | WPS | | Get all Subject Sample Papers Click Below to Join our Whatsapp Channel

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