Biology · General Awareness
Human Endocrine System
1,395 Questions
The human endocrine system comprises glands that secrete hormones to regulate bodily functions like metabolism, growth, and reproduction. Competitive exams frequently test the specific roles of hormones such as adrenaline, insulin, and progesterone. Use these questions to master the locations and functions of different hormones.
Hormone functionsIslets of LangerhansFight or flight responseBlood pressure regulationFemale sex hormonesWater soluble hormones
Human Endocrine System Questions
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Oxytocin
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Follicle stimulating hormone
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Adrenocorticotropic hormone
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Growth hormone
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Thyroid stimulating hormone
A
Correct answer
Explanation
Oxytocin is not secreted by anterior pituitary gland. It is secreted by posterior pituitary gland.
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Thyroid stimulating hormone
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Adrenaline
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Aldosterone
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Cortisol
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Thyroxine
E
Correct answer
Explanation
Thyroxine hormone controls cellular respiration.
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Insulin
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Glucagon
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Thyroid stimulating hormone
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Adrenaline
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Testosterone
D
Correct answer
Explanation
Adrenaline is chemically an amino acid.
D
Correct answer
Explanation
ADH does not stimulate any other gland to produce hormone. So, it is not a tropic hormone.
LH stimulates the formation of corpus luteum to produce the female hormone progesterone and the testes to produce the male hormone testosterone. It is a tropic hormone.
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Glucagon
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Insulin
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ADH
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Adrenaline
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Thyroxine
A
Correct answer
Explanation
Glucagon hormone stimulates the breakdown of glycogen in the liver to glucose.
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Delta cells of islets of Langerhans
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Aplha cells of islets of Langerhans
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Beta cells of islets of Langerhans
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Pituitary gland
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Thyroid gland
C
Correct answer
Explanation
Beta cells of islets of Langerhans secrete insulin hormone.
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TSH
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ADH
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Insulin
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Oxytocin
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Glucagon
B
Correct answer
Explanation
ADH hormone controls the reabsorption of water from kidney tubules.
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A and B
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A, C and D
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Only C
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A, B and D
D
Correct answer
Explanation
All of them are correct except option C as G-protein coupled receptor is activated by the external signal in the form of ligand or signal mediator.
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Alpha subunit
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Beta subunit
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Gamma subunit
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Omega subunit
A
Correct answer
Explanation
G-protein is the trimeric protein made up of alpha, beta and gamma subunits when alpha subunit binds to GDP and interacts with adenylate cyclase.
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Only B
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Only A and B
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Only B and C
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Only C and D
C
Correct answer
Explanation
Steroid hormones interact with nuclear receptor of target cells and do not increase the activity of target enzyme.
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Thyroid hormones
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Moderate warming
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Sympathetic stimulation
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Mild alkalemia
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Vagal stimulation
E
Correct answer
Explanation
The heart is innervated by vagal and sympathetic fibres.
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Cortisol
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Cortisone
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Corticosterone
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Aldosterone
C
Correct answer
Explanation
Corticosterone controls carbohydrate metabolism.
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Corticosterone
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Noradrenalin
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Estrogen
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Aldosterone
D
Correct answer
Explanation
Aldosterone is called the life saving hormone as its administration can prevent death due to hyposecretion of mineralocorticosteroids.
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Zona glomerulosa
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Zona fasciculata
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Zona reticularis
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Chromaffin cells
B
Correct answer
Explanation
Zona fasciculata produces glucocorticoids. Corticosterone is a glucocorticoid.
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Mineralocorticoids
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Glucocorticoids
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Androgens
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Luteinizing hormone (LH)
B
Correct answer
Explanation
Glucocorticoids prevents the rejection of transplanted organ.