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51.

Assertion. Thymus gland is prominent at birth but gradually atrophies in the adult Reason. Thymus hormone named thymosine causes growth in early life by accelerating cells division.A. If both A and R are true and R is the correct explanation of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is false.D. If both A and R are false.

Answer» Correct Answer - A
52.

Removal or absence of thymus in early life shall bring aboutA. Lack of lymphocytesB. Lack of antibodiesC. Lack of lymph nodesD. All the above

Answer» Correct Answer - A
53.

Secretion of which hormone is not pituitary dependentA. TriiodothyronineB. TestosteroneC. GlucocorticoidsD. Parathyroid hormone

Answer» Correct Answer - D
54.

With respect to its body mass which of the following will have highest metabolic rateA. RatB. RabbitC. HorseD. Elephant

Answer» Correct Answer - A
55.

Which one of the following is not the function of insulin?A. Increases glycogenesisB. Increases glycogenolysisC. Promote oxidation of glucose and conversion of glucose into glycogen in muscle as well as liver cellsD. Icrease uptake of amino acids by liver and muscles

Answer» Correct Answer - B
56.

The islets of Langerhans are found inA. LiverB. pancreasC. stomachD. alimentary canal.

Answer» Correct Answer - B
57.

Islets of Langerhans are found inA. anterior pituitaryB. kidney cortexC. spleenD. endocrine pancreas

Answer» Correct Answer - D
58.

Which of the following is/are NOT secretion(s) of islets of Langerhans ?A. GlucagonB. InsulinC. SomatostatinD. Androstenedione

Answer» Correct Answer - D
59.

Which of the following is the hormone secreted by zona fasciculataA. AldosteroneB. CortisolC. AndrostenedioneD. Mineralocorticoids

Answer» Correct Answer - B
60.

Zona glomerulosa or glomerular area of adrenal cortex is involved in A. Water and electrolyte balance B. Carbohydrate metabolism C. Steroid and hormone secretion D.  Blood pressure

Answer» Correct Answer - A
Zona glomerulosa or glomerular area of adrenal cortex is involved in water and electrolyte balance.
61.

Enlargement of lower jaw occurs in ’ A. Acromegaly B. Simmond’e dlseaseC. Gigantism D. Cushing dlsease

Answer» Correct Answer - A
See Answer for Q.16. Enlargement of lower jaw occurs in acromegaly.
62.

which of the two adrenalcortical layers, zona glomerulosa and zona reticularis lies outside enveloping the other ?

Answer» Zona glomerulosa is outer layer enveloping zona reticularis.
63.

Choose the correct answer among the following options: `{:("A Epinephrine","i Increase in muscle growth"),("V Testosterone","ii Decreae in blood pressure"),("C Glucagon","iii) Decrease in liver glycogen content"),("D Atrial natriuretic factor","iv Increase heart beat"):}`A. A-ii, B-i, C-iii, D=ivB. A-iv, B-i, C-iii, D-iiC. A-i, B-ii, C-iii, D-ivD. A-i, B-iv, C-ii, D-iii

Answer» Correct Answer - B
64.

The person showing low BMR, possibly Will be suffering fromA. myxoedemaB. cretinismC. Hashimotos diseaseD. Graves disease

Answer» Correct Answer - B
65.

Name the endocrine gland that produces calcitonin and mention the role played by this hormone.

Answer» Calcitonin/ thyrocalcitonin is a 32 amino acid, linear polypeptide hormone that is produced in humans primarily by the parafollicular cells of the thyroid gland. it checks excess `Ca^(2+)` and phosphate in plasma by decreasing mobilisation from bones. Deficiency of calcitonin results in osteoporesis or loss of bone density (due to dissolution of parathoemone.
66.

Most important component of oral contraceptive is :A. progesteroneB. growth hormoneC. thyroxineD. luteinizing hormone

Answer» Correct Answer - A
67.

Calcitonin is a thyroid hormone whichA. elevates potassium level in bloodB. lowers calcium level in bloodC. elevates calcium level in bloodD. has no effect on calcium

Answer» Correct Answer - B
68.

Parathormone deficiency causesA. GoiterB. HypocalcemiaC. HypercalcemiaD. All of the above

Answer» Correct Answer - B
69.

Disease caused by deficiency of parathormone is A. Cretinism B. Hypercalcemia C. Tetany D. Myxoedema

Answer» Correct Answer - C
Disease caused by deficiency of parathormone is tetany
70.

Which disease is caused by the deficiency of thyroxin in the adultsA. Diabetes mellitusB. Diabetes insipidus C. Myxoedema D. Exopthalmlc gontre

Answer» Correct Answer - C
Deficiency of thyroxin/hypothyroidism in adults results in myxoedema
71.

Which disease is caused by the deficiency of thyroxin in the adultsA. Diabetes incipidusB. Diabetes mellitusC. MyxoedemaD. Exopthalmic goitre

Answer» Correct Answer - C
72.

Disease caused by deficiency of iodine isA. GoiterB. MyxodermaC. CretinismD. Tetany

Answer» Correct Answer - A
73.

Give example(s) of : (a) Hyperglycemic hormone and hypoglycemic hormone. (b) Hypercalcemic hormones. (c ) Gonadotrophic hormones. (d) Progestational hormone. (e )Blood pressure lowering hormone. (f ) Androgens and estrogens.

Answer» (Glucagon, Insulin
(b) Parathormone (PTH)
(c ) Follicle stimulating hormone (FSH) and Luteinizing hormone (LH).
(d) Progesterone
(e ) Epinephrine and nor-epinephrine.
(f) Testosterone and Estradiol.
74.

Which of the following is a hypercalcemic hormone ?A. ThyroxineB. Parathyroid hormoneC. InsulinD. Glucagon

Answer» Correct Answer - B
75.

Gonadotrophic hormones are produced in theA. Posterior part of thyroidB. Adrenal cortexC. Adenohypophysis of pituitaryD. Interstital cells of testis

Answer» Correct Answer - C
76.

Give example(s) of : (a) Hyperglycemic hormone and hypoglycemic hormone (b) Hypercalcemic hormone (c ) Gonadotrophic hormones (d) Progestational hormone (e ) Blood pressure lowering hormone (f) Androens and estrogens

Answer» (a) Hyperglycemic hormone and hypoglycemic hormone
Hyperglycemic hormone is glucgon, while hypoglycemic hormone is insulin.
(b) Hypercalcemic hormone
Parathyroid hormone (PTH) is hypercalcemic hormomon.
(c ) Gonadotrophic hormones
Luteinizing hormone and follicle stimulating hormones are examples of gonadotrophic hormone. (d) Progestational hormone
Progesterone is a progestational hormone
(e ) Blood pressure lowering hormone
Nor-adrenalin is a blood pressure lowering hormone.
(f) Androgens and estrogens
Testosterone is an example of androgen, while an example of estrogen is estradiol.
77.

Which hormonal deficiency is reponsible for the following ? (a) Diabetes mellitus, (b) Goitre, (c ) Cretinism

Answer» (a) Diabetes mellitus
Diabetes mellitus is characterized by abnoramally high glucose levels in the blood due to the deficiency of hormone, called insulin.
(b) Goitre
Goitre is charactrised by an abnormal enlargement of the thyroid gland due to the deficiency of thyroxin
(c ) Cretinism
Cretinism is characterized by stunted growth in the baby due to the deficiency of thyroid hormone in the body.
78.

A patient of diabetes mellitus excreted glucose in urine even when he was kept in a carhbohydrate-free diet. It is becauseA. Fats are catabolized to form glucoseB. Amino acids are catabolized in liverC. Amino acids are discharged in blood stream from liverD. Glycogen from muscles are discharged in blood stream from liver

Answer» Correct Answer - D
79.

Explain the hormonal basis of (i) diabetes mellitus (ii) diabetes insipidus.

Answer» Diabetes mellitus is a pancreatic hormone disorder resulting from hyposecretion of insulin hormone. Main symptoms are excessive and repeated urine production, excessive thirst, hyperglcemia.
Diabetes insipidus is a hypothalamic disorder which results from hyposecretion of ADH hormone (vasorpressin). Main symptoms are thirst, dehydration, excretion of bulky urine.
80.

____ is/are glands that are present on the dorsal surface of thyroid gland.A. ThymusB. Pituitary glandC. Parathyroid glandsD. Adrenal gland

Answer» Correct Answer - C
81.

The calcium level is increased in blood by promotingA. Dissolution of skeletal structuresB. Excretion of calcium in urineC. Mineralisation of bonesD. Mineralisation of teeth

Answer» Correct Answer - A
82.

The thyroid gland is composed of two lobes which are located on either side of theA. Vertebral columnB. SternumC. NeckD. Trachea

Answer» Correct Answer - D
The thyroid gland is composed of lobes which are located on either side of the trachea.
83.

The flap of connective tissue that connects the two lobes of thyroid gland is calledA. InfundibulumB. IsletC. IsthmusD. Intercalated disc

Answer» Correct Answer - C
84.

Fight-or-flight reactions cause activation ofA. The pancreas leading to a reduction in the blood sugar levelsB. The parathyroid glands, leading to increased metabolic rateC. The kidney, leading to suppresion of reninangiotesin-aldosterone pathwayD. The adrenal medulla, leading to increased of epinephrine and norepineaphrine

Answer» Correct Answer - D
Fight-or-flight reactions cause activation of the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine.
85.

Fight-or-flight reactions cause activation ofA. The parathyroid glands, leading to increased metabolic rateB. The kidney, leading to suppression of renin-angiolerisin-aldosterone pathwayC. The adrenal medulla, leading to increased secretion of epinephrine and norepinephrineD. The pancreas leading to a reduction in the blood sugar levels

Answer» Correct Answer - C
86.

_____is synthesised by the growing ovarian follicles.A. EstrogenB. TestosteroneC. CortisolD. Prolactin

Answer» Correct Answer - A
87.

The hormones that initiate ejection of milk, stimulates mile production and growth of ovarian follicles are respectively known asA. PRL, OT and LHB. OT, PRL and FSHC. LH, PRL and FSHD. PRH, OT and LH

Answer» Correct Answer - B
Hormone that initiates ejection of milk, stimulates milk production and growth of ovarian follicles are respectively known as OT, PRL and FSH.
88.

The hormones that initiate ejection of milk, stimulates mile production and growth of ovarian follicles are respectively known asA. PRL, OT and LHB. OT, PRL, and FSHC. LH, PRL and FSHD. PRH, OT and LH

Answer» Correct Answer - B
89.

Progesterone isA. enzyme for digesting proteinsB. hormone to initiate uterine contractionC. amino acid which may be cause of alkaptonuriaD. hormone concerned wilh retention and maintenance of pregnancy

Answer» Correct Answer - D
90.

Which ovarian hormone is proteinaceous ?A. OestradiolB. ProgesteroneC. RelaxinD. Human chorionic gonadotropin

Answer» Correct Answer - C
91.

Cortisol is secreted fromA. pancreasB. ThyroidC. AdrenalD. Thymus

Answer» Correct Answer - C
92.

Cortisol is secreted fromA. pancreasB. thyroidC. adrenaD. thymus

Answer» Correct Answer - C
93.

Both adrenaline and cortisol are secreted in response to stress. Which of the following statements is also true for both of these hormones ?A. They act to increase blood glucoseB. They are secreted by the adrenal cortexC. Their secretion is stimulated by adrenocorticotrophin.D. They are secreted into the blood within seconds of the onset of strees.

Answer» Correct Answer - A
They act to increase blood glucose
94.

The hormones produced during emotional stress isA. MelatoninB. ThyroxineC. CalcitoninD. Adrenaline

Answer» Correct Answer - D
95.

The hormones produced during emotional stress isA. MelatoninB. ThyroxineC. CalcitoninD. Adrenalin

Answer» Correct Answer - D
96.

Vasopressin analogs that inhibit the synthesis of ADH would most likely work at which of the following sites ?A. Collecting ductB. Anterior pituitaryC. Posterior pituitaryD. Hypothalamus

Answer» Correct Answer - D
97.

Which of the following can be included under heterocrine gland ?A. ThyroidB. Pineal glandC. GonadsD. Thymus

Answer» Correct Answer - C
98.

Which of the following hormones is secreted by corticotrophs in humans ?A. ACTHB. MSHC. PRLD. Both (1) and (2)

Answer» Correct Answer - D
99.

Which of the following hormones is secreted by corticotrophs in humans ?A. ACTHB. MSHC. PRLD. Both (1) & (2)

Answer» Correct Answer - D
100.

Which of the following hormones is known to have calorigenic effect ?A. `T_(3) & T_(4)`B. TCTC. PTHD. Calcitriol

Answer» Correct Answer - A