8th Class Science Reproduction in Animals Question Bank Reproduction and Endocrine System

  • question_answer
     
    The given figure represents the location of various endocrine glands in human body.
     
    Identify the glands marked as P, Q, R, S and T and select the incorrect statement regarding these.  

    A) Gland P secretes the hormone thyroxine, which regulates growth and metabolism.

    B) Gland Q secretes the hormones corticosteroids and adrenaline, which regulate breathing, heart rate, carbohydrate metabolism and mineral balance.

    C) Glands S and T secrete the hormones which control secondary sexual characters in females and males respectively.

    D) Gland R secretes the hormone insulin, whose increased concentration leads to diabetes.

    Correct Answer: D

    Solution :

    In the given figure, P, Q, R, S and T represent thyroid gland, adrenal gland, pancreas, ovary and testis respectively. Pancreas (R) secretes the hormone insulin, whose decreased concentration leads to diabetes.


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