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NEET Biology Chemical Coordination and Integration Question Bank Self Evaluation Test - Chemical Co-ordination and Integration

  • question_answer
    Secretin and cholecystokinin are digestive hormones. They are secreted in:

    A) Pyloric stomach

    B)                    Duodenum

    C) Ileum                                       

    D) Oesophagus

    Correct Answer: B

    Solution :

    [b] Hormones are non-nutrient chemicals which act as intercellular messengers and are produced in trace amounts. Gastrointestinal tracts secrete four major peptide hormones ? gastrin, secretin, cholecystokinin (CCK) and gastricinhibitory peptide   (GEP)   while juxtaglomerular cells of kidney secrete erythropoietin, a peptide hormone. Releasing and inhibitory hormones are produced by hypothalamus. Neurohypophysis or posterior pituitary is under the direct neural regulation of the hypothalamus.


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