Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Chemical Coordination and Integration question

2011 · Q12
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Chemical Coordination and Integration
  5. /2011 · Q12

Chemical Coordination and Integration question

2011 · Q12

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone
  1. A
    calcitonin
  2. B
    prolactin
  3. C
    adrenaline
  4. D
    melatonin
View written solutionFree

Correct answer: D

Melatonin is a hormone that regulates the 24 hour rhythm of our body such as the sleep-wake cycle etc. Melatonin is produced by pineal gland in the brain, which is responsible for operation and regulation of the biological clock in mammals.

PreviousNext

More from Chemical Coordination and Integration

  • Match the source gland with its respective hormone and function and select the correct option.2011 · MCQ
  • Given below is an incomplete table on hormones, their source glands and one major effect of each human body. Identify the option representing correct grouping of hormone its gland and effect. Includes table2011 · MCQ
  • Low Ca++ in the body fluid may be the cause of2010 · MCQ
  • Injury to adrenal cortex is not likely to affect the secretion of which one of the following?2010 · MCQ
  • Which one of the following pairs is incorrectly matched?2010 · MCQ
  • Toxic agents present in food which interfere with thyroxine synthesis lead to the development of2010 · MCQ
  • select the correct matching of a hormone, its source and function.2010 · MCQ
  • A health disorder that results from the deficiency of thyroxine in adults and characterised by (i) a low metabolic rate, (ii) increase in body weight and (iii) tendency to retain water in tissues is2009 · MCQ