NEET-UG Biology · Class 11
Gonads and other hormone sources — NEET & JEE Questions
Gonads and other hormone sources is a topic in Chemical Coordination and Integration, a Class 11 Biology chapter of the NEET-UG syllabus. TestBudy holds 15 published NEET-UG questions on Gonads and other hormone sources, each with the marking scheme of the real paper.
- questions
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- 10
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Gonads and other hormone sources MCQs with solutions
10 of the 15 published questions on this topic, exactly as they appear in a test. Answers and worked solutions come with your result rather than on this page.
The pineal hormone involved in circadian rhythms:
- A. thyroxine
- B. insulin
- C. melatonin
- D. cortisol
The principal androgen secreted by the testes:
- A. testosterone
- B. progesterone
- C. thyroxine
- D. melatonin
The thymic hormones involved in T-lymphocyte differentiation:
- A. androgens
- B. prolactin
- C. thymosins
- D. catecholamines
Which cells of the testes secrete androgens?
- A. Pancreatic beta cells
- B. Sertoli cells only
- C. Leydig cells
- D. Thyroid follicular cells
Which ovarian hormone is especially important for maintaining the uterine lining during pregnancy?
- A. Adrenaline
- B. Glucagon
- C. Calcitonin
- D. Progesterone
What is a major role of melatonin secreted by the pineal gland?
- A. Regulation of daily biological rhythms
- B. Direct lowering of blood glucose
- C. Stimulation of skeletal muscle contraction
- D. Formation of thyroid hormones
The hormone secreted by the corpus luteum that supports pregnancy and stimulates the formation of alveoli and milk secretion in mammary glands is
- A. estrogen
- B. testosterone
- C. progesterone
- D. relaxin
Removal of the thymus early in life would most directly interfere with maturation of which cells?
- A. Erythrocytes
- B. T lymphocytes
- C. Platelets
- D. Osteocytes
A man is found to have reduced spermatogenesis, poor development of secondary sexual characters and low muscle mass. Which cells of the testis are most likely underactive, and what do they normally secrete?
- A. Sertoli cells; inhibin
- B. Germ cells; estrogen
- C. Spermatogonia; FSH
- D. Leydig (interstitial) cells; androgens such as testosterone
Following a large meal, the acidity of the food entering the duodenum triggers a hormone from the intestinal mucosa that makes the exocrine pancreas secrete water and bicarbonate. Which hormone is it?
- A. Secretin
- B. Gastrin
- C. Cholecystokinin (CCK)
- D. Gastric inhibitory peptide (GIP)
Common mistakes in Gonads and other hormone sources
Recorded against questions in this topic that are not shown above, so none of these points at an answer you can see on this page.
- Assuming only traditional endocrine glands can release hormones.
- Grouping all small endocrine organs together without matching them to their characteristic hormones.
- Blames the thymus or pineal, which do not act on red cell production.
- Swaps the two glands' roles.
- Confuses ANF with aldosterone, which does the opposite.
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