Machine-translated by Google. Questions are authored in English.
Top

Discussion

Endocrine signalling is distinguished by the signal being

  • A.passed through a gap junction into a neighbour
  • B.carried in the bloodstream to distant targets
  • C.released directly onto an immediately adjacent cell
  • D.acting only on the very cell that released it

Answer: B

Hormones reach the whole body but affect only cells carrying the right receptor. This is why one circulating molecule can produce quite different effects in different tissues. Adrenaline dilates some blood vessels and constricts others for this reason.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.