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ICSE Notes 2017 : Biology

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Varun
St. Peter's School, Bangalore
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SCIENCE (52) BIOLOGY SCIENCE Paper - 3 of the significance of life and its importance in human welfare. Aims: 1. To acquire the knowledge of the economic importance of plants and animals. 2. To develop an understanding of inter-relationship between sustainability environmental adaptations. 4. To understand the capacities and limitations of all the biological and economic activities so as to be able to use them for a better quality of life. the and 5. To acquire the ability to observe, experiment, hypothesis, infer, handle equipment accurately and make correct recordings. 3. To develop an understanding of the interdependence of plants and animals so as to enable pupils to acquire a clearer comprehension CLASS IX There will be one paper of two hours duration of 80 Marks and Internal Assessment of Practical Work Carrying 20 Marks. To be taught in brief with respect to location, basic structure and function, giving typical examples of their location so as to enable pupils to understand their role in different physiological processes in plants and animals. The paper will be divided into two sections, Section I (40 marks) and Section II (40 marks). Section I (compulsory) will contain short answer questions on the entire syllabus. 2. Flowering Plants (i) Vegetative Propagation: Artificial methods, advantages and disadvantages. Economic importance of artificial propagation, Hybridisation.and Micro Propagation. Brief idea of Biotechnology and its applications role in medicine and industry. Section II will contain six questions. Candidates will be required to answer any four of these six questions. 1. Basic Biology (i) The cell, a unit of life, protoplasm, basic difference between prokaryotic and eukaryotic cell; differences between an animal and a plant cell. The concept in brief with suitable examples. Artificial methods: cutting, grafting and layering with examples. Advantages and disadvantages of vegetative reproduction to be discussed. A basic understanding of the cell theory, structure of plant and animal cell with functions of various cell organelles. (Protoplam, Cytoplasm, Cell Wall, Cell Membrane, Nucleus, Nucleolous, Mitochondria, Endoplasmic Reticulum, Ribosome, Golgibodies, Plastids, Lysosomes, Centrosome and Vacuole). Difference between a plant cell and an animal cell should be mainly discussed with respect to cell wall, centrosome and vacuoles and plastids. Economic importance propagation. of artificial Hybridization: Meaning and benefits. Micro Propagation: meaning, uses and limitations. Brief idea of biotechnology (example - human insulin from E.coli. Applications of biotechnology: in medicine penicillin, tetracycline; in industry (example cheese, vinegar, yogurt, alcoholic beverages; (ii) Tissues: Types of plant and animal tissues. 108

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