1.

Give one difference between each of the following : (i) Ventricular systole and Ventricular diastole. (ii) Sertoli cells and Spermatids. (iii) Dwarfism and Cretinism. (iv) Antibodies and Interferons. (v) Glucocorticoids and Mineralocorticoids.

Answer»
(i) Ventricular systoleVentricular diastole
Ventricles contract and the blood flows from ventricles to arteries.Ventricles are relaxed and the blood flows from auricles to the ventricles.
(ii) Sertoli cellSpermatids
Present in the germinal epithelium of the seminiferous tubules which provides nourishment to the developing sperms.Few cells of the germinal epithelium of the seminiferous tubules undergo meiosis to produce spermatids.
(iii) DwarfismCretinism
It is caused due to hyposecretion of growth hormone during childhood.Caused due to malfunctioning of the thyroid gland in infant.
(iv) AntibodiesInterferons
Acts slowly and long-lasting.The action is quick but temporary.
(v) GlucocorticoidsMineralocorticoids
Influences the metabolism of carbohydrates, proteins and fats.Affects the transport of electrolyte and absorption of sodium ions by the various parts of the uriniferous tubules.


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