Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. Which hormone is involved in the regulation of stomatal closure during water stress? (2023)
A.
Gibberellins
B.
Cytokinins
C.
Abscisic acid
D.
Auxins
Show solution
Solution
Abscisic acid is involved in the regulation of stomatal closure during water stress to prevent water loss.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is involved in the regulation of the menstrual cycle? (2021)
A.
Progesterone
B.
Testosterone
C.
Cortisol
D.
Insulin
Show solution
Solution
Progesterone is a hormone that plays a key role in regulating the menstrual cycle and maintaining pregnancy.
Correct Answer:
A
— Progesterone
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Q. Which hormone is involved in the regulation of water balance in the body? (2022)
A.
Aldosterone
B.
Insulin
C.
Thyroxine
D.
Adrenaline
Show solution
Solution
Aldosterone is a hormone that helps regulate water balance by promoting sodium retention in the kidneys, which in turn affects water retention.
Correct Answer:
A
— Aldosterone
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Q. Which hormone is primarily involved in the regulation of stomatal opening?
A.
Auxin
B.
Gibberellin
C.
Abscisic acid
D.
Cytokinin
Show solution
Solution
Abscisic acid plays a key role in closing stomata during water stress, thus regulating water loss.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is primarily involved in the regulation of water balance in the body? (2022)
A.
Aldosterone
B.
Antidiuretic hormone (ADH)
C.
Cortisol
D.
Insulin
Show solution
Solution
Antidiuretic hormone (ADH), also known as vasopressin, plays a key role in regulating water balance by promoting water reabsorption in the kidneys.
Correct Answer:
B
— Antidiuretic hormone (ADH)
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Q. Which hormone is primarily involved in the regulation of water loss in plants? (2023)
A.
Auxin
B.
Gibberellin
C.
Abscisic acid
D.
Cytokinin
Show solution
Solution
Abscisic acid plays a crucial role in regulating water loss by causing stomatal closure during water stress.
Correct Answer:
C
— Abscisic acid
Learn More →
Q. Which hormone is primarily involved in the response of plants to drought stress? (2023)
A.
Gibberellins
B.
Auxins
C.
Abscisic acid
D.
Cytokinins
Show solution
Solution
Abscisic acid plays a crucial role in helping plants respond to drought stress by closing stomata.
Correct Answer:
C
— Abscisic acid
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Q. Which hormone is primarily responsible for fruit ripening? (2023)
A.
Auxins
B.
Gibberellins
C.
Ethylene
D.
Cytokinins
Show solution
Solution
Ethylene is the primary hormone responsible for the ripening of fruits.
Correct Answer:
C
— Ethylene
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Q. Which hormone is primarily responsible for plant growth? (2023)
A.
Ethylene
B.
Auxin
C.
Gibberellin
D.
Abscisic acid
Show solution
Solution
Auxin is a plant hormone that promotes cell elongation and is crucial for growth.
Correct Answer:
B
— Auxin
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Q. Which hormone is primarily responsible for promoting cell elongation in plants? (2021)
A.
Gibberellins
B.
Auxins
C.
Cytokinins
D.
Ethylene
Show solution
Solution
Auxins are known to promote cell elongation by loosening the cell walls, allowing cells to expand.
Correct Answer:
B
— Auxins
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Q. Which hormone is primarily responsible for regulating the menstrual cycle? (2022)
A.
Testosterone
B.
Estrogen
C.
Progesterone
D.
Insulin
Show solution
Solution
Estrogen plays a crucial role in regulating the menstrual cycle, along with progesterone.
Correct Answer:
B
— Estrogen
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Q. Which hormone is primarily responsible for the fight-or-flight response? (2019)
A.
Cortisol
B.
Epinephrine
C.
Insulin
D.
Thyroxine
Show solution
Solution
Epinephrine (adrenaline) is the primary hormone responsible for the fight-or-flight response, preparing the body for quick action.
Correct Answer:
B
— Epinephrine
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Q. Which hormone is produced by the thyroid gland? (2023)
A.
Insulin
B.
Thyroxine
C.
Cortisol
D.
Adrenaline
Show solution
Solution
Thyroxine is produced by the thyroid gland and plays a crucial role in regulating metabolism.
Correct Answer:
B
— Thyroxine
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Q. Which hormone is responsible for the 'fight or flight' response? (2023)
A.
Cortisol
B.
Adrenaline
C.
Insulin
D.
Thyroxine
Show solution
Solution
Adrenaline (epinephrine) is the hormone that prepares the body for a 'fight or flight' response during stressful situations.
Correct Answer:
B
— Adrenaline
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Q. Which hormone is responsible for the development of secondary sexual characteristics in males? (2019)
A.
Estrogen
B.
Progesterone
C.
Testosterone
D.
Luteinizing hormone
Show solution
Solution
Testosterone is the hormone responsible for the development of secondary sexual characteristics in males, such as increased muscle mass and body hair.
Correct Answer:
C
— Testosterone
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Q. Which hormone is responsible for the regulation of metabolism and energy levels? (2022)
A.
Thyroxine
B.
Insulin
C.
Testosterone
D.
Estrogen
Show solution
Solution
Thyroxine (T4) is a hormone produced by the thyroid gland that plays a crucial role in regulating metabolism and energy levels.
Correct Answer:
A
— Thyroxine
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Q. Which hormone is responsible for the ripening of fruits?
A.
Gibberellins
B.
Ethylene
C.
Cytokinins
D.
Auxins
Show solution
Solution
Ethylene is a plant hormone that promotes the ripening of fruits and is involved in various aspects of plant growth and development.
Correct Answer:
B
— Ethylene
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Q. Which hormone is secreted by the adrenal medulla? (2019)
A.
Cortisol
B.
Aldosterone
C.
Epinephrine
D.
Insulin
Show solution
Solution
Epinephrine, also known as adrenaline, is secreted by the adrenal medulla and is involved in the body's fight-or-flight response.
Correct Answer:
C
— Epinephrine
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Q. Which hormone is secreted by the pancreas to lower blood glucose levels? (2023)
A.
Glucagon
B.
Insulin
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Insulin is secreted by the pancreas and is responsible for lowering blood glucose levels by facilitating glucose uptake by cells.
Correct Answer:
B
— Insulin
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Q. Which hormone is secreted by the pancreas to lower blood sugar levels? (2020)
A.
Glucagon
B.
Insulin
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Insulin is secreted by the pancreas and plays a key role in lowering blood sugar levels by facilitating glucose uptake.
Correct Answer:
B
— Insulin
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Q. Which hormone is secreted by the pancreas to raise blood sugar levels? (2019)
A.
Insulin
B.
Glucagon
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Glucagon is secreted by the pancreas and raises blood sugar levels by promoting the conversion of glycogen to glucose in the liver.
Correct Answer:
B
— Glucagon
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Q. Which hormone is secreted by the pancreas to regulate blood sugar levels? (2022)
A.
Insulin
B.
Glucagon
C.
Somatostatin
D.
Cortisol
Show solution
Solution
Insulin is secreted by the pancreas and plays a crucial role in lowering blood sugar levels by facilitating glucose uptake by cells.
Correct Answer:
A
— Insulin
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Q. Which hormone is secreted by the pancreas to regulate metabolism? (2023)
A.
Insulin
B.
Glucagon
C.
Somatostatin
D.
All of the above
Show solution
Solution
The pancreas secretes insulin, glucagon, and somatostatin, all of which play roles in regulating metabolism.
Correct Answer:
D
— All of the above
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Q. Which hormone is secreted by the pancreas? (2020)
A.
Insulin
B.
Thyroxine
C.
Cortisol
D.
Epinephrine
Show solution
Solution
Insulin is the hormone secreted by the pancreas that helps regulate blood glucose levels.
Correct Answer:
A
— Insulin
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Q. Which hormone regulates blood pressure by affecting blood vessel constriction? (2023)
A.
Insulin
B.
Adrenaline
C.
Aldosterone
D.
Angiotensin II
Show solution
Solution
Angiotensin II is a potent vasoconstrictor that plays a key role in regulating blood pressure.
Correct Answer:
D
— Angiotensin II
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Q. Which hormone regulates blood pressure by causing vasoconstriction? (2019)
A.
Insulin
B.
Adrenaline
C.
Aldosterone
D.
Angiotensin II
Show solution
Solution
Angiotensin II is a potent vasoconstrictor that plays a key role in regulating blood pressure.
Correct Answer:
D
— Angiotensin II
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Q. Which hormone regulates the production of red blood cells? (2019)
A.
Insulin
B.
Erythropoietin
C.
Adrenaline
D.
Thyroxine
Show solution
Solution
Erythropoietin is a hormone produced by the kidneys that stimulates the production of red blood cells in the bone marrow.
Correct Answer:
B
— Erythropoietin
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Q. Which hormone regulates the reabsorption of water in the kidneys? (2021)
A.
Aldosterone
B.
Antidiuretic hormone (ADH)
C.
Insulin
D.
Cortisol
Show solution
Solution
Antidiuretic hormone (ADH) regulates the reabsorption of water in the kidneys, reducing urine output.
Correct Answer:
B
— Antidiuretic hormone (ADH)
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Q. Which hormone regulates the sleep-wake cycle? (2022)
A.
Melatonin
B.
Serotonin
C.
Cortisol
D.
Adrenaline
Show solution
Solution
Melatonin is a hormone produced by the pineal gland that regulates the sleep-wake cycle, promoting sleep.
Correct Answer:
A
— Melatonin
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Q. Which hormone triggers ovulation? (2019)
A.
Follicle-stimulating hormone
B.
Luteinizing hormone
C.
Estrogen
D.
Progesterone
Show solution
Solution
Luteinizing hormone (LH) triggers ovulation, leading to the release of a mature egg from the ovary.
Correct Answer:
B
— Luteinizing hormone
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