9th Class Science The Fundamental Unit of Life Question Bank Assertion and Reason MCQs - The Fundamental Unit of Life

  • question_answer
    Direction: For question numbers two statements are given-one labeled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes [a], [b], [c] and [d] as given below.
    Assertion Robert Brown discovered nucleus.
    Reason Nucleoplasm and cytoplasm of a living cell together form the protoplasm.
     

    A) Both A and R are true and R is correct explanation of the A

    B) Both A and R are true, but R is not the correct explanation of the A

    C) A is true, but R is false

    D) A is false, but R is true

    Correct Answer: B

    Solution :

    [b] Both A and R are true, but R is not the correct explanation of A.
    In 1831, Robert Brown discovered nucleus.
    Nucleoplasm and cytoplasm of a living cell together form the protoplasm.
    Purkinje in 1839 coined the term protoplasm for the fluid substances of the cell.
     


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