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ICSE Class 8 Prelims 2022 : Biology (Sophia High School, Bangalore)

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SOPHIA HIGH SCHOOL FINAL EXAMINATION-JANUARY 2022 BIOLOGY CLASS:VIII DATE:31-1-22 MARKS: 40 TIME: 1HR SECTION - 1 (ALL THE QUESTIONS ARE MANDATORY) QUESTION - 1 A. NAME THE FOLLOWING: 5 1. 2. 3. 4. 5. The natural pacemaker of the heart The female reproductive parts of the flower The seat of intelligence Two small ovoid glands found below prostate gland Hormone that controls the metabolic rate. B. WRITE THE FUNCTION OF THE FOLLOWING: 5 1. 2. 3. 4. 5. Cerebellum Wood Parenchyma Calyx Uterus Coronary Artery C. DEFINE THE FOLLOWING: 5 1. 2. 3. 4. 5. Implantation Synapse Heart attack Propagules Islets of Langerhans D. WRITE THE DIFFERENCE BETWEEN THE FOLLOWING BASED ON WHAT IS GIVEN IN THE BRACKET : 5 1. Arteries and veins (nature of blood) 2. 3. 4. 5. Growth hormone and adrenaline (site of secretion) Cranial nerves and spinal nerves (number) Cutting and layering (2 examples) Thyroid gland and prostate gland (location) SECTION - 2 (ANSWER ANY 4 OF THE FOLLOWING QUESTIONS) QUESTION - 2 (5 marks) A. Observe the given diagram and answer the questions that follow: a. b. c. d. Identify the given diagram Label the parts numbered - 3,4,6 Write the function of Part - 2 Name the valve present between the left auricle and ventricle. B. Identify the type of reflex: a. Watering of mouth at the sight of favourite food. b. Playing musical instruments. C. Write any 2 ailments caused by insufficient secretion of thyroxine. QUESTION - 3 (5 marks) A. Answer the following questions based on the given diagram: a. Identify the given diagram. b. Label the parts labelled - A,B,C,D,E B. Draw a neat labelled diagram of a root hair. QUESTION - 4 (5 Marks) A. Draw a neat diagram of a flower and label the following parts - ovules, anther, thalamus. B. Name the parts involved in vegetative propagation in the following plants: 1. Onion 2. Bryophyllum 3. Sweet potato 4. Ginger C. Define Reproduction. QUESTION - 5 (5 Marks) Complete the following table: Ailment Causes Symptoms 1. Stress or anxiety 2. Diabetes mellitus 3. 4. 5. 6. Strain the heart,damage blood vessels. Myxoedema 7. 8. 9. Heart stops pumping blood around the body due to coronary artery disease. 10. QUESTION - 6 (5 Marks) A. Draw a neat labelled diagram of human sperm. B. Give reasons for the following: 1. Sometimes, an artificial pacemaker is surgically implanted in humans. 2. Injury to medulla may result in the death of a person. 3. The study of ecosystems is important. ****************************************************************************************************

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Additional Info : ICSE Class 8 Final Exam , 2022 : Biology : Sophia High School
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