General Science & Healthcare•Updated for 2026 Competitive Exams
Best 40 MCQS on Endocrine System
Practice top multiple choice questions (MCQs), topic summary, and verified answers for Best 40 MCQS on Endocrine System. Essential for Central & State competitive examinations. Solve these high-frequency practice questions with step-by-step solutions to evaluate your preparation level.
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Practice Questions & Explanations (40 Questions)
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Q1NEET / SSCMedium
The endocrine system is composed of:
Q2NEET / SSCMedium
Chemical messengers secreted by endocrine glands are called:
Q3NEET / SSCMedium
Which gland is known as the 'master gland'?
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Q4NEET / SSCMedium
The pituitary gland is controlled by the:
Q5NEET / SSCMedium
Which hormone regulates metabolism?
Q6NEET / SSCMedium
Which gland requires iodine to function properly?
Q7NEET / SSCMedium
A deficiency of iodine can lead to a condition called:
Q8NEET / SSCMedium
Which hormone lowers blood sugar levels?
Q9NEET / SSCMedium
Which hormone raises blood sugar levels?
Q10NEET / SSCMedium
Insulin and glucagon are produced by the:
Q11NEET / SSCMedium
The 'fight or flight' hormone is:
Q12NEET / SSCMedium
Adrenaline is produced by the:
Q13NEET / SSCMedium
Which glands sit on top of the kidneys?
Q14NEET / SSCMedium
Which hormone is associated with the sleep-wake cycle?
Q15NEET / SSCMedium
The pineal gland is located in the:
Q16NEET / SSCMedium
Which hormone stimulates growth and cell reproduction?
Q17NEET / SSCMedium
Excessive production of Growth Hormone in adults leads to:
Q18NEET / SSCMedium
Which hormone stimulates milk production in females?
Q19NEET / SSCMedium
Which hormone stimulates uterine contractions during childbirth?
Q20NEET / SSCMedium
Antidiuretic Hormone (ADH) regulates:
Q21NEET / SSCMedium
Another name for Antidiuretic Hormone (ADH) is:
Q22NEET / SSCMedium
Which hormone regulates calcium levels in the blood?
Q23NEET / SSCMedium
Calcitonin, which lowers blood calcium levels, is secreted by the:
Q24NEET / SSCMedium
The primary male sex hormone is:
Q25NEET / SSCMedium
The primary female sex hormones are:
Q26NEET / SSCMedium
Which hormone triggers ovulation?
Q27NEET / SSCMedium
The stress hormone that helps regulate metabolism and immune response is:
Q28NEET / SSCMedium
Which gland has both endocrine and exocrine functions?
Q29NEET / SSCMedium
What condition results from an underactive thyroid gland?
Q30NEET / SSCMedium
What condition results from the body's inability to produce insulin?
Q31NEET / SSCMedium
What condition occurs when cells become resistant to insulin?
Q32NEET / SSCMedium
Hormones are typically regulated by:
Q33NEET / SSCMedium
Which hormone stimulates the development of ovarian follicles?
Q34NEET / SSCMedium
Aldosterone regulates the balance of which two minerals?
Q35NEET / SSCMedium
Which gland is large in infants but shrinks after puberty, playing a role in immune function?
Q36NEET / SSCMedium
Hypersecretion of cortisol causes which condition?
Q37NEET / SSCMedium
Hyposecretion of adrenal cortex hormones causes:
Q38NEET / SSCMedium
An autoimmune disease causing hyperthyroidism is:
Q39NEET / SSCMedium
Erythropoietin (EPO), a hormone that stimulates RBC production, is primarily produced by the:
Q40NEET / SSCMedium
Which hormone is released by the heart in response to high blood volume?
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