CHEMICAL COORDINATION AND INTEGRATION

 Q122.Which of the following is a paracrine hormone? 

(1) Insulin 

(2) Glucagon 

(3) Somatostatin of pancreas 

(4) GH (Growth hormone)

Ans.3

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Q123.Which of the following is an auto-immune disorder in which the person produces antibodies that mimic the action of TSH, but are not regulated by the normal negative feedback controls? 

(1) Myxoedema 

(2) Grave's disease 

(3) Cretinism 

(4) Hypocalcemic tetany 

Ans.2

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Q124.Which of the following hormone is used in transplantation surgery to suppress immunity and thus chances of organ rejection by recipient's body is decreased

(1) Thyroxine 

(2) Cortisol  

(3) Aldosterone  

(4) Steroid hormone 

Ans.2

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Q125.A destruction of adrenal cortex by diseases like tuberculosis produces 

(1) Cushing syndrome 

(2), Adrenal virilism 

(3) Addison's disease 

(4) Aldosteronism 

Ans.3

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Q126.Which of the following is an action not produced by sympathetico-adrenal system? 

(1) Constriction of skin and visceral smooth muscle 

(2) Dilation of arterioles of heart and skeletal muscles 

(3) Constriction of pupils 

(4) Dilation of bronchioles 

Ans.3

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Q127.Eunuchoidism is due to 

(1) Perturbation of estrogen to androgen ratio 

(2) Failure of testosterone secretion 

(3) Tumor in testis 

(4) Tumor in ovaries 

Ans.2

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Q128.What is correct to say about the hormone action in humans? 

(1) In females, FSH first binds with specific receptors on ovarian cell membrane 

(2) FSH stimulates the secretion of estrogen and progesterone 

(3) Glucagon is secreted by B-cells of Islets of langerhans and stimulates glycogenolysis 

(4) Secretion of thymosins is stimulated with aging 

Ans.1

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Q129.According to the accepted concept of hormone action, if receptor molecules are removed from target organs, then the target organ will 

(1) Continue to respond to the hormone without any difference 

(2) Not respond to the hormone 

(3) Continue to respond to the hormone but will require higher concentration 

(4) Continue to respond to the hormone but in the opposite way 

Ans.2

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Q130.Hormones thyroxine, adrenaline and the pigment melanin are formed from 

(1) Tyrosine 

(2) Proline 

(3) Tryptophan 

(4) Glycine 

Ans.1

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Q131.A sequential expression of a set of human genes Occurs when a steroid molecule binds to the 

(1) Messenger RNA 

(2) DNA sequence 

(3) Ribosome 

(4) Transfer RNA

Ans.2

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Q132.Which of the following set of hormones can easily pass through the cell membrane of a target cell and bind to specific intracellular receptors? 

a. Placental progesterone 

b. Aldosterone 

c. Estrogen 

d.Thyroxine 

Mark the correct set 

(1) b & c 

(2) a, b & c 

(3) a & c 

(4) a, b, c & d 

Ans.4

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Q133.Insulin receptor is 

(1) Trimeric protein 

(2) Membrane bound protein 

(3) Intrinsic protein 

(4) Intracellular receptor protein present in the cytoplasm 

Ans.2

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Q134.The organ which was considered vestigeal till recently but now confirmed to be an endocrine gland is 

(1) Thymus 

(2) Pancreas 

(3) Pineal 

(4) Pituitary 

Ans.3

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Q135.Find the odd one out 

(1) Glucocorticoids, Mineralocorticoids, Sexcorticoids 

(2) Nor-epinephrine, Epinephrine, Adrenaline 

(3) Relaxin, Oestrogen, Progestrone 

(4) Insulin, Glucagon, Thymosin 

Ans.4

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Q136.The hormones produced during emotional stress is 

(1) Melatonin 

(2) Thyroxine 

(3) Calcitonin 

(4) Adrenalin

Ans.4