Hormones are the organic compounds of varying structural complexity. Which of the following is not a function or property of these compounds?
Correct answer: A. They initiate new biochemical reactions
- A. They initiate new biochemical reactions
- B. They are poured directly into blood
- C. They may be proteins
- D. They affect target cells
Explanation
Option [A] Hormones do not start a new biochemical reaction itself instead whenever a stimulus hormone is released in blood and reaches the target site to perform a corrective mechanism.Option[B] Hormones are directly released into blood and reach their target site via bloodOption[C] They can be proteins eg insulin,glucagonOption[D] Hormones affect only the target cells to perform a corrective mechanism eg glucagon only affects liver cells.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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Chemical coordination uses hormones released by endocrine glands and carried in blood to specific target cells. Coverage includes the pituitary, thyroid, pancreas, adrenal glands, ovaries and testes, feedback control, and the contrast between slower, longer-lasting hormonal responses and rapid nervous coordination.
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