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ICSE Class IX Question Bank 2024 : Biology : Cell Unit of Life

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BIOLOGY Board ICSE Class 9 Topic CELL:UNIT OF LIFE 1. Define a cell. 2. When was the cell theory propounded? 3. Name the scientist who observed the honeycomb-like structures in a thin section of cork under simple microscope. What did he mean by these structures? 4. Draw labeled diagrams to show various structures found in animal cells. 5. What is cell theory? Name the scientists who formulated it. 6. Give three differences between cell wall and cell membrane. 7. Differentiate between the following (a) Cytoplasm and Protoplasm (b) Cell organelles and Cell inclusions (c) Prokaryotic and Eukaryotic cell 8. The following diagram represents cells from cheek lining (Fig. I) and plant cells (Fig. II). Label the parts against the indicated alphabets / numbers 9. Give the location and the function of the following parts of the cell: (a) Plasma membrane (b) Chromosomes (c) Endoplasmic reticulum (d) Ribosome 10. Fill in the blanks: (i) Ribosomes are rich in _____________ and ______________. (ii) RNA stands for ________________. (iii) Virchow stated ________________________________________________ Head Office: 106-107-108 Lake Homes Shopping Complex, Chandivali IRB Road, Mumbai 400076 T.: 022 4120 3067 E.: info@speedlabs.in

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