Class 9 · Science · Biology

The Fundamental Unit of LifePractice Questions & MCQs

Practice The Fundamental Unit of Life questions for Class 9 Science - important MCQs and practice questions with answers and step-by-step solutions. Solve the sample The Fundamental Unit of Life questions below, then get the full set free on the RankByte app.

Topics covered

Discovery and Basic Structure of the CellProkaryotic vs Eukaryotic CellsPlasma Membrane (Diffusion, Osmosis)Cell Wall and NucleusCell Organelles (ER, Golgi, Lysosomes, Mitochondria, Plastids, Vacuoles)Cell Discovery and Cell TheoryCell Structure and OrganellesProkaryotic, Eukaryotic, Plant and Animal CellsDiffusion, Osmosis and TransportCell Growth and Cell DivisionCell structure, organelles, membrane transport, prokaryote vs eukaryote

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The Fundamental Unit of LifeQuiz - Solve & Score

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  1. Q1. A history teacher shows a thin slice of cork viewed under a 1665 microscope, revealing tiny box-like compartments; which scientist made this observation and coined the word for these boxes?

    • A.Robert Hooke
    • B.Matthias Schleiden
    • C.Robert Brown
    • D.Anton van Leeuwenhoek

    Answer: A. Robert Hooke

    In 1665 Robert Hooke examined cork, saw box-like walls of dead cells, and named each box a 'cell'. Answer: Robert Hooke.

  2. Q2. An exhibit panel says a researcher discovered a dense rounded body inside orchid cells in 1831 and gave it a lasting name; which structure and person does the panel describe?

    • A.The chloroplast, by Robert Brown
    • B.The cytoplasm, by Robert Hooke
    • C.The nucleus, by Leeuwenhoek
    • D.The nucleus, by Robert Brown

    Answer: D. The nucleus, by Robert Brown

    Robert Brown in 1831 observed and named the nucleus. Answer: nucleus, by Robert Brown.

  3. Q3. Two scientists working in 1838 and 1839 proposed that all plants and all animals are built from cells; which pair is credited with this unifying idea?

    • A.Schleiden and Schwann
    • B.Purkinje and Golgi
    • C.Hooke and Leeuwenhoek
    • D.Brown and Virchow

    Answer: A. Schleiden and Schwann

    Schleiden (plants, 1838) and Schwann (animals, 1839) proposed the cell theory. Answer: Schleiden and Schwann.

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