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Science

Discovery of the cell

In this Class 9 Science topic from “Cell: The Building Block of Life,” students learn how the cell was discovered and why it is considered the basic structural and functional unit of life. They explore Robert Hooke’s observation of cork in 1665, the early use of microscopes, and later observations of living cells by scientists such as Antonie van Leeuwenhoek. The topic builds a foundation for understanding cell structure, cell theory, and the development of modern biology.

Easy · Level 1 · 20 questions

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  1. Robert Hooke
  2. Anton van Leeuwenhoek
  3. Matthias Schleiden
  4. Theodor Schwann
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  1. 1543
  2. 1665
  3. 1674
  4. 1838
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  1. They looked like tiny rooms or chambers
  2. They were moving freely in water
  3. They contained visible blood
  4. They were shaped like complete plants
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  1. A network of tiny compartments
  2. A group of swimming bacteria
  3. A single large animal cell
  4. The green parts of a living leaf
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  1. Robert Hooke
  2. Anton van Leeuwenhoek
  3. Rudolf Virchow
  4. Louis Pasteur
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  1. Hooke saw cork compartments; Leeuwenhoek saw living microorganisms
  2. Hooke saw living microorganisms; Leeuwenhoek named cork compartments
  3. Both studied only cork compartments
  4. Both first described cells in 1838
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  1. Cork
  2. Fresh blood
  3. A drop of pond water
  4. A piece of bone
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  1. Microscope
  2. Telescope
  3. Thermometer
  4. Barometer
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  1. He named the tiny cork compartments “cells.”
  2. He discovered the nucleus in a living cell.
  3. He first observed bacteria swimming in pond water.
  4. He proposed that all cells come from existing cells.
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  1. Anton van Leeuwenhoek
  2. Robert Hooke
  3. Matthias Schleiden
  4. Theodor Schwann
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  1. Micrographia
  2. Principia
  3. The Origin of Species
  4. Systema Naturae
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  1. Yes, they were actively growing cells
  2. No, they were empty compartments in dead cork tissue
  3. Yes, they were moving microorganisms
  4. No, they were air bubbles in water
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  1. Animalcules
  2. Chromosomes
  3. Tissues
  4. Fossils
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  1. Living microorganisms
  2. Empty compartments in cork
  3. A fossilised leaf
  4. A magnified piece of metal
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  1. It made very small structures visible
  2. It changed cork into living tissue
  3. It created new cells in the sample
  4. It measured the age of the sample
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  1. Small rooms
  2. Long roads
  3. Water droplets
  4. Tree branches
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  1. Plant material
  2. Animal blood
  3. A metal surface
  4. A cloud of gas
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  1. He examined a thin cork sample through a microscope
  2. He watched a whole forest grow
  3. He measured the temperature of a pond
  4. He studied the movement of planets
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  1. A drop of pond water
  2. A slice of cork
  3. A piece of dry wood
  4. A grain of sand
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  1. Robert Hooke and Anton van Leeuwenhoek
  2. Matthias Schleiden and Theodor Schwann
  3. Charles Darwin and Gregor Mendel
  4. Louis Pasteur and Robert Koch

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