NEET AIPMT SOLVED PAPER SCREENING 2008

  • question_answer
    Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?

    A) They were able to reproduce

    B) They could separate combinations of molecules from the surroundings     

    C) They were partially isolated from the surroundings  

    D) They could' maintain an internal environment                

    Correct Answer: D

    Solution :

    Homeostasis   is   keeping   the   internal environment of the body constant. It is necessary   for   normal   life   processes. Microspheres are molecular aggregates proteinolds. Oparin and Sydney Fox held that large organic molecules synthesized abiotically on primitive earth formed large colloid aggregates due to intermolecular attractioh. These   colloidal   particles   were   called coacervates.     Oparin     called     gaint nucleoproteinoid molecules as protobionts. These reproduce either by budding or binary fission but do not exhibit homeostasis.


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