Biology Question Bank – 41 MCQs on “Endocrine System” – Answered!
            41 Questions with Answers and Explanations on “Endocrine System” for Biology Students.1. MSH of pars intermedia of middle pituitary is responsible for (a) darkening of skin in lower vertebrates Image Source: davincicharter.org ADVERTISEMENTS: (b) light colouration of skin in lower vertebrates(c) both A and B(d) darkening of skin in human beings. ADVERTISEMENTS: Answer and Explanation:1. (a): Pars intermedia is the boundary between the anterior and posterior lobes of the pituitary. It contains three types of cells – basophils, chromophobes and colloid- filled cysts. This area produces melanocyte stimulating hormone or MSH. It stimulates the synthesis of black pigment melanin in the skin and also causes dispersion of melanin granules in the pigment cells, thereby darkening the colour in certain animals (fishes; amphibians). In man it has no such role.2. Which…        
        
    