SSC General Science & Technology Sample Paper NCERT Sample Paper-3

  • question_answer
    Characteristic feature of human cornea is that

    A)  It is secreted by conjunctiva and glandular tissue

    B)  It is lacrimal gland which secretes tears

    C)  Blood circulation is absent in cornea

    D)  In old age it becomes hard and white layer deposits on it which causes the cataract

    Correct Answer: C

    Solution :

    [c] Eye of a human is about 1 inch in diameter and is covered and protected by the sclera, which is made up of tough connective tissue. The front of eye is transparent thus allows the light to enter the eye. This portion of the eye's outer layer is called cornea. It lacks blood supply. It derives nutrients via aqueous human from cell body. Cornea not only allows light to enter the eye but also bend it as well.

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