Cell-The Unit of Life


  1. Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?









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    The site of aerobic oxidation of carbohydrates in cells to generate ATP are mitochondria.

    Correct Option: C

    The site of aerobic oxidation of carbohydrates in cells to generate ATP are mitochondria.


  1. Experiments on Acetabularia by Hammerling proved the role of









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    Presence of hereditary information in the nucleus was proved by the work of Hammerling on single celled alga Acetabularia.

    Correct Option: B

    Presence of hereditary information in the nucleus was proved by the work of Hammerling on single celled alga Acetabularia.



  1. Golgi apparatus is absent in









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    Golgi complex is absent in prokaryotic cell i.e (PPLO, bacteria and blue green algae). It is present in all eukaryotic cells except sieve tubes of plants, sperms of bryophytes and pteridophytes and red blood corpuscles

    Correct Option: C

    Golgi complex is absent in prokaryotic cell i.e (PPLO, bacteria and blue green algae). It is present in all eukaryotic cells except sieve tubes of plants, sperms of bryophytes and pteridophytes and red blood corpuscles


  1. The prokaryotic flagella possess









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    The prokaryotic flagellum is single stranded made up of several parallel protein fibrils and helical in shape while in eukaryotes it is made up of axonema and sheath.

    Correct Option: D

    The prokaryotic flagellum is single stranded made up of several parallel protein fibrils and helical in shape while in eukaryotes it is made up of axonema and sheath.



  1. Which of the following statements regarding cilia is not correct?









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    Eukaryotic cilia are made up of tubulin protein. Cilia have a core of 2 microtubules and around there are 9 doublet microtubules. These are not at all hair like structures.

    Correct Option: A

    Eukaryotic cilia are made up of tubulin protein. Cilia have a core of 2 microtubules and around there are 9 doublet microtubules. These are not at all hair like structures.