NEET Biology: Hormones Practice Questions
11 free multiple-choice questions on Hormones for NEET Biology, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more Hormones questions in the app →Q1. Hormones are generally secreted by which type of glands?
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Correct answer: D — Endocrine glands
Endocrine glands are specialized glands that secrete hormones directly into the circulatory system (bloodstream).
Q2. The primary function of the thyroid hormones is to regulate which process in the body?
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Correct answer: D — Metabolism and growth
Thyroid hormones are crucial for regulating the basal metabolic rate, growth, and development of the body.
Q3. Which of the following glands is often referred to as the 'master gland' of the endocrine system?
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Correct answer: C — Pituitary gland
The pituitary gland is known as the master gland because it secretes hormones that regulate the activity of many other endocrine glands.
Q4. Which of the following glands is classified as an endocrine gland?
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Correct answer: C — Thyroid gland
Endocrine glands secrete hormones directly into the bloodstream to regulate body functions. The thyroid gland is a major endocrine gland.
Q5. Which class of hormones are generally lipid-soluble and often cross the cell membrane easily?
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Correct answer: C — Steroid hormones
Steroid hormones (like those from the adrenal cortex) are lipid-soluble and can easily diffuse across the plasma membrane to reach target cells.
Q6. Insulin, a hormone produced by the pancreas, primarily functions to regulate which process in the body?
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Correct answer: C — Blood glucose regulation
Insulin is the principal hormone responsible for lowering blood glucose levels by promoting the uptake of glucose into cells.
Q7. Hormones are chemical messengers secreted by which primary body structures?
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Correct answer: D — Endocrine glands
Hormones are chemical messengers secreted by endocrine glands, which release these substances into the bloodstream to regulate body functions.
Q8. The hormone system in the body primarily functions by maintaining internal stability through which feedback mechanism?
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Correct answer: D — Negative feedback
Negative feedback is the most common mechanism where the end product of a process inhibits the initial stimulus, maintaining homeostasis.
Q9. Which class of hormones are generally derived from amino acids and are typically water-soluble?
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Correct answer: A — Peptide hormones
Peptide hormones (like insulin) are derived from amino acids and are generally water-soluble.
Q10. The adrenal glands are located in which region of the body?
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Correct answer: A — Abdomen
The adrenal glands are located on top of the kidneys.
Q11. Which type of glands are responsible for synthesizing and secreting hormones directly into the bloodstream?
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Correct answer: A — Endocrine glands
Endocrine glands are specialized structures that secrete hormones directly into the circulation (bloodstream) to act on distant target cells.
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