Hormones & Plant Movement MCQ Quiz – Part 1
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This Hormones & Plant Movement MCQ Quiz helps aspirants revise important concepts related to plant hormones and different types of plant movements, which are frequently asked in competitive exams. Regular practice of these MCQs improves conceptual understanding and helps candidates answer biology questions quickly and accurately.
GK Series – Biology – Hormones & Plant Movement MCQ Quiz |
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| Subject | Biology |
| Chapter | Hormones & Plant Movement |
| Part | 1 |
| Questions | 25 |
Who Should Attempt This Hormones & Plant Movement MCQ Quiz?
This Hormones & Plant Movement MCQ Quiz is useful for aspirants preparing for SSC, Railways, Banking, Defence, and other government job exams, where basic biology questions are commonly asked in the General Knowledge section.
Topics Covered in This Hormones & Plant Movement MCQ Quiz
This quiz includes MCQs based on important topics such as plant hormones (auxin, gibberellin, cytokinin, ethylene, and abscisic acid), tropic movements, nastic movements, phototropism, geotropism, and other fundamental concepts related to plant growth and movement.
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Question 1 of 25
1. Question
Hormones were first discovered by which scientist?
Correct
➤ Hormones were discovered by E. H. Starling.
➤ The first hormone discovered was Secretin in 1902.Incorrect
➤ Hormones were discovered by E. H. Starling.
➤ The first hormone discovered was Secretin in 1902. -
Question 2 of 25
2. Question
The first hormone discovered in the human body was
Correct
➤ The first hormone discovered was Secretin in 1902.
➤ It was discovered by E. H. Starling while studying digestion.Incorrect
➤ The first hormone discovered was Secretin in 1902.
➤ It was discovered by E. H. Starling while studying digestion. -
Question 3 of 25
3. Question
Glands that release hormones directly into the bloodstream are called
Correct
➤ Endocrine glands release hormones directly into the blood.
➤ They are ductless glands.Incorrect
➤ Endocrine glands release hormones directly into the blood.
➤ They are ductless glands. -
Question 4 of 25
4. Question
Which type of glands secrete their substances through ducts?
Correct
➤ Exocrine glands release their secretions through ducts.
➤ These secretions usually contain enzymes or other chemicals.Incorrect
➤ Exocrine glands release their secretions through ducts.
➤ These secretions usually contain enzymes or other chemicals. -
Question 5 of 25
5. Question
The gland that controls and regulates other endocrine glands is called
Correct
➤ The pituitary gland is known as the “master gland”.
➤ It regulates the activity of other endocrine glands.Incorrect
➤ The pituitary gland is known as the “master gland”.
➤ It regulates the activity of other endocrine glands. -
Question 6 of 25
6. Question
The pituitary gland is located
Correct
➤ The pituitary gland is a pea-sized gland located at the base of the brain.
➤ It produces several hormones that regulate body functions.Incorrect
➤ The pituitary gland is a pea-sized gland located at the base of the brain.
➤ It produces several hormones that regulate body functions. -
Question 7 of 25
7. Question
Which brain region regulates hormone secretion and controls the pituitary gland?
Correct
➤ The hypothalamus regulates the secretion of hormones.
➤ It controls the pituitary gland.Incorrect
➤ The hypothalamus regulates the secretion of hormones.
➤ It controls the pituitary gland. -
Question 8 of 25
8. Question
Which of the following functions is performed by the hypothalamus?
Correct
➤ The hypothalamus regulates hormone release.
➤ It also helps control body temperature, hunger, and sleep cycles.Incorrect
➤ The hypothalamus regulates hormone release.
➤ It also helps control body temperature, hunger, and sleep cycles. -
Question 9 of 25
9. Question
The anterior pituitary is also known as
Correct
➤ The anterior pituitary is called Adenohypophysis.
➤ It secretes hormones that regulate growth, metabolism, and reproduction.Incorrect
➤ The anterior pituitary is called Adenohypophysis.
➤ It secretes hormones that regulate growth, metabolism, and reproduction. -
Question 10 of 25
10. Question
Which hormone is responsible for body growth and development?
Correct
➤ Growth hormone (Somatotropin) controls body growth.
➤ It is secreted by the anterior pituitary gland.Incorrect
➤ Growth hormone (Somatotropin) controls body growth.
➤ It is secreted by the anterior pituitary gland. -
Question 11 of 25
11. Question
Which hormone is responsible for milk production in females?
Correct
➤ Prolactin hormone stimulates the formation of milk in mammary glands.
➤ It is secreted by the anterior pituitary gland.Incorrect
➤ Prolactin hormone stimulates the formation of milk in mammary glands.
➤ It is secreted by the anterior pituitary gland. -
Question 12 of 25
12. Question
The hormone that stimulates growth in the human body is called
Correct
➤ Somatotropin is another name for Growth Hormone (GH).
➤ It is secreted by the anterior pituitary gland and regulates body growth.Incorrect
➤ Somatotropin is another name for Growth Hormone (GH).
➤ It is secreted by the anterior pituitary gland and regulates body growth. -
Question 13 of 25
13. Question
Deficiency of growth hormone during childhood causes
Correct
➤ Dwarfism occurs due to deficiency of growth hormone in childhood.
➤ It results in short stature due to reduced bone growth.Incorrect
➤ Dwarfism occurs due to deficiency of growth hormone in childhood.
➤ It results in short stature due to reduced bone growth. -
Question 14 of 25
14. Question
Excess secretion of growth hormone in children leads to
Correct
➤ Gigantism occurs when excess growth hormone is secreted during childhood.
➤ It results in abnormally increased height.Incorrect
➤ Gigantism occurs when excess growth hormone is secreted during childhood.
➤ It results in abnormally increased height. -
Question 15 of 25
15. Question
Excess growth hormone in adults causes
Correct
➤ Acromegaly occurs due to excess growth hormone in adults.
➤ It causes enlargement of hands, feet and facial bones.Incorrect
➤ Acromegaly occurs due to excess growth hormone in adults.
➤ It causes enlargement of hands, feet and facial bones. -
Question 16 of 25
16. Question
The posterior pituitary gland is also known as
Correct
➤ The posterior pituitary is called Neurohypophysis.
➤ It stores and releases hormones produced by the hypothalamus.Incorrect
➤ The posterior pituitary is called Neurohypophysis.
➤ It stores and releases hormones produced by the hypothalamus. -
Question 17 of 25
17. Question
Which hormone regulates water balance in the body?
Correct
➤ ADH (Antidiuretic hormone) regulates water reabsorption in kidneys.
➤ It helps maintain water balance and blood pressure.Incorrect
➤ ADH (Antidiuretic hormone) regulates water reabsorption in kidneys.
➤ It helps maintain water balance and blood pressure. -
Question 18 of 25
18. Question
Which hormone is known as the “love hormone”?
Correct
➤ Oxytocin is known as the “love hormone.”
➤ It stimulates uterine contraction during childbirth and milk secretion.Incorrect
➤ Oxytocin is known as the “love hormone.”
➤ It stimulates uterine contraction during childbirth and milk secretion. -
Question 19 of 25
19. Question
Oxytocin mainly helps during
Correct
➤ Oxytocin stimulates uterine muscle contraction during labour.
➤ It also helps in milk ejection during breastfeeding.Incorrect
➤ Oxytocin stimulates uterine muscle contraction during labour.
➤ It also helps in milk ejection during breastfeeding. -
Question 20 of 25
20. Question
The pineal gland is located in the
Correct
➤ The pineal gland is a small endocrine gland located in the middle of the brain.
➤ It plays an important role in regulating sleep cycles.Incorrect
➤ The pineal gland is a small endocrine gland located in the middle of the brain.
➤ It plays an important role in regulating sleep cycles. -
Question 21 of 25
21. Question
Which hormone is secreted by the pineal gland?
Correct
➤ Melatonin is secreted by the pineal gland.
➤ It helps regulate the sleep–wake cycle (circadian rhythm).Incorrect
➤ Melatonin is secreted by the pineal gland.
➤ It helps regulate the sleep–wake cycle (circadian rhythm). -
Question 22 of 25
22. Question
Serotonin is commonly known as the
Correct
➤ Serotonin is known as the “happy hormone.”
➤ It helps regulate mood, happiness, and emotional balance.Incorrect
➤ Serotonin is known as the “happy hormone.”
➤ It helps regulate mood, happiness, and emotional balance. -
Question 23 of 25
23. Question
Deficiency of ADH leads to which disease?
Correct
➤ Diabetes insipidus occurs due to deficiency of ADH hormone.
➤ It causes frequent urination and excessive water loss.Incorrect
➤ Diabetes insipidus occurs due to deficiency of ADH hormone.
➤ It causes frequent urination and excessive water loss. -
Question 24 of 25
24. Question
Melatonin secretion mainly occurs in response to
Correct
➤ Melatonin is released in response to darkness.
➤ It helps regulate the body’s biological clock.Incorrect
➤ Melatonin is released in response to darkness.
➤ It helps regulate the body’s biological clock. -
Question 25 of 25
25. Question
The daily biological cycle of sleeping and waking is called
Correct
➤ The circadian rhythm is the body’s natural sleep–wake cycle.
➤ It is regulated mainly by the pineal gland through melatonin secretion.Incorrect
➤ The circadian rhythm is the body’s natural sleep–wake cycle.
➤ It is regulated mainly by the pineal gland through melatonin secretion.