Chemical Coordination and Integration
ICSE · Class 11 · Biology
Practice quiz for Chemical Coordination and Integration — ICSE Class 11 Biology. MCQs and questions with answers to test your preparation.
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Which scientists coined the term 'hormone' in 1902?
Which gland is called the 'master gland' of the endocrine system?
Insulin is secreted by which cells of the islets of Langerhans?
Glucagon is secreted by which cells of the islets of Langerhans?
Sample Questions
Which hormone promotes water reabsorption from the distal convoluted tubule of the nephron?
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ADH (vasopressin)
ADH (antidiuretic hormone/vasopressin) promotes reabsorption of water from the distal convoluted tubule, concentrating urine.
Diabetes insipidus is caused by deficiency of which hormone?
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ADH
Diabetes insipidus results from ADH deficiency, leading to large volumes of dilute tasteless urine and intense thirst.
Which hormone stimulates uterine contractions during childbirth?
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Oxytocin
Oxytocin, stored in the posterior pituitary, causes uterine muscle contractions during parturition and also triggers milk ejection.
Calcitonin is secreted by which cells of the thyroid gland?
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Parafollicular (C) cells
Calcitonin is secreted by parafollicular (C) cells of the thyroid gland and lowers blood calcium levels.
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