Class 11 Biology Chapter 22: Chemical Coordination and Integration – 100 MCQs with Answers
1. Endocrine glands are also called:
Answer: A) Ductless glands
2. Which gland regulates metabolism?
Answer: B) Thyroid
3. Insulin is secreted by:
Answer: B) Beta cells
4. The master gland is:
Answer: A) Pituitary
5. Adrenaline is secreted by:
Answer: B) Adrenal medulla
6. Glucagon increases:
Answer: B) Blood sugar
7. Graves’ disease is related to:
Answer: B) Overactive thyroid
8. Oxytocin helps in:
Answer: B) Labour pain & milk ejection
9. Parathyroid hormone helps regulate:
Answer: B) Ca2+
10. Which gland is called the emergency gland?
Answer: A) Adrenal
11. Hyposecretion of ADH causes:
Answer: A) Diabetes insipidus
12. Which hormone lowers calcium in blood?
Answer: C) Calcitonin
13. Melatonin is secreted by:
Answer: C) Pineal
14. Hormone essential for milk production:
Answer: A) Prolactin
15. Which is NOT a steroid hormone?
Answer: C) Insulin
16. Cushing’s syndrome is caused by:
Answer: A) Excess cortisol
17. TSH is secreted by:
Answer: B) Anterior pituitary
18. Secretion of growth hormone in adults causes:
Answer: C) Acromegaly
19. FSH acts on:
Answer: A) Ovaries/testes
20. Addison’s disease is due to:
Answer: B) Lack of cortisol
21. Which is NOT an effect of adrenaline?
Answer: B) Pupillary constriction
22. Hormone responsible for water balance:
Answer: B) ADH
23. Androgens are:
Answer: A) Male sex hormones
24. Posterior pituitary is also known as:
Answer: B) Neurohypophysis
25. The islets of Langerhans are found in:
Answer: B) Pancreas
26. Which gland produces thymosin?
Answer: C) Thymus
27. Amount of insulin produced is regulated by:
Answer: A) Glucose level in blood
28. Which controls the sleep-wake cycle?
Answer: B) Pineal
29. The hormone secreted when blood sugar falls:
Answer: B) Glucagon
30. Which of these is NOT an endocrine gland?
Answer: C) Sweat gland
31. Hypothyroidism in children causes:
Answer: B) Cretinism
32. Diabetes mellitus is because of:
Answer: A) Less insulin
33. Which hormone is called “anti-diuretic”?
Answer: C) ADH
34. Which element is essential for thyroxine synthesis?
Answer: B) Iodine
35. Which gland disappears in adults?
Answer: C) Thymus
36. Which is NOT a peptide hormone?
Answer: C) Thyroxine
37. Sella turcica houses:
Answer: B) Pituitary
38. Exophthalmic goitre is due to:
Answer: A) Hyperthyroidism
39. Which is NOT secreted by pituitary?
Answer: C) Insulin
40. Which hormone released during stress?:
Answer: A) Adrenaline
41. Cushing’s syndrome is linked to:
Answer: A) High cortisol
42. When growth hormone secretion is low in children:
Answer: B) Dwarfism
43. Corpus luteum secretes:
Answer: B) Progesterone
44. Diabetes insipidus patient will have:
Answer: B) Large volume of dilute urine
45. Goitre is associated with:
Answer: A) Thyroid
46. The hormone leptin is secreted by:
Answer: B) Adipose tissue
47. The hormone for uterine contraction at childbirth:
Answer: B) Oxytocin
48. Difference between nervous & endocrine:
Answer: C) Hormones use bloodstream
49. Insulin deficiency leads to:
Answer: A) Hyperglycemia
50. Target organ for ACTH is:
Answer: B) Adrenal cortex
51. Myxedema occurs in:
Answer: B) Adults (hypothyroidism)
52. Adrenal glands are present:
Answer: A) Above kidneys
53. Which hormone affects basal metabolic rate?
Answer: A) Thyroxine
54. Which hormone causes hyperglycemia?
Answer: B) Glucagon
55. Melatonin influences:
Answer: C) Sleep-wake cycle
56. Renin is secreted by:
Answer: B) Kidney
57. Which is NOT an effect of testosterone?
Answer: C) Breast growth
58. Hormone responsible for ovulation:
Answer: B) LH
59. Gland not under pituitary control:
Answer: B) Pancreas
60. Estrogen produced by:
Answer: D) All
61. Parathormone increases blood:
Answer: B) Calcium
62. Deficiency of thyroxine in pregnant woman causes:
Answer: A) Cretinism in child
63. Which is NOT secreted by adrenal cortex?
Answer: C) Adrenaline
64. Hormone to increase blood pressure:
Answer: C) Both
65. Excess glucocorticoids cause:
Answer: A) Cushing’s syndrome
66. Releasing hormones come from:
Answer: B) Hypothalamus
67. Hormones are transported by:
Answer: B) Blood
68. The alpha cells of pancreas secrete:
Answer: B) Glucagon
69. The hormone for parturition:
Answer: B) Oxytocin
70. Which hormone affects uterus during pregnancy?
Answer: A) Progesterone
71. Which one is not a tropic hormone?
Answer: D) Insulin
72. Target tissue for insulin is:
Answer: D) All above
73. Glucocorticoids are secreted from:
Answer: B) Adrenal cortex
74. Which hormone alters permeability of plasma membrane?
Answer: C) ADH
75. The fight or flight response involves:
Answer: B) Adrenaline
76. Osteoporosis in older women is often due to lack of:
Answer: A) Estrogen
77. Which is a mineralocorticoid?
Answer: B) Aldosterone
78. Main effect of insulin:
Answer: A) Glycogen formation
79. ACTH deficiency leads to:
Answer: B) Addison’s
80. Which hormone controls salt and water balance:
Answer: B) Aldosterone
81. Which hormone stimulates red cell production?
Answer: C) Erythropoietin
82. Goitre is usually caused due to deficiency of:
Answer: B) Iodine
83. Secretion of FSH and LH is controlled by:
Answer: B) GnRH
84. Hormone for contraction of gall bladder is:
Answer: B) CCK
85. Which hormone causes reabsorption of water in tubules?
Answer: B) ADH
86. Epinephrine is the same as:
Answer: B) Adrenaline
87. Hormone for calcium absorption from gut:
Answer: C) Vitamin D (calcitriol)
88. Somatostatin inhibits:
Answer: C) Both
89. Endocrine system works closely with:
Answer: C) Nervous system
90. Hormones act on:
Answer: B) Target cells
91. Diabetes insipidus results from deficiency of:
Answer: B) ADH
92. Hormones secreted by GI tract:
Answer: D) All above
93. Main function of thymosin:
Answer: A) Immunity
94. Which is NOT a function of oxytocin?
Answer: C) Blood sugar control
95. Which hormone increases glucose uptake by cells?
Answer: B) Insulin
96. Hormone controlling testes’ descent:
Answer: C) Testosterone
97. Corpus luteum is maintained by:
Answer: A) LH
98. A chemical messenger is:
Answer: B) Hormone
99. Which hormones are amino acid derivatives?
Answer: C) Both
100. Hypersecretion of GH in children leads to:
Answer: B) Gigantism
End of MCQ List.
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