Hormones Flashcards
What are hormones?
Chemical messengers released from endocrine glands into the interstitial fluid
How are hormones transported in the body?
Hormones are transported in the bloodstream (hormones can be soluble in plasma or not)
Write a note on hormones.
4
Chemical messengers released from endocrine glands into the interstitial fluid
Hormones are transported in the bloodstream (hormones can be soluble in plasma or not)
Reach target cell/organ(s)
Alter metabolism of target cell
What is endocrinology?
The study of endocrine disease
What do hormones do when they reach their target cell?
They alter metabolism of the target cell
How many different classifications of hormones are there?
Three
Classify hormones.
Amino acid derivatives
Peptide derivatives
Lipid derivatives
How do hormones alter the metabolism of a cell?
By changing the type, activities or quantities of important enzymes or structural proteins
Through what three methods do hormones affect enzymes or proteins?
(3)
Stimulating the synthesis of enzymes or structural proteins not already present in the cell
Turn on/off existing enzymes
Increasing or decreasing the rate of synthesis of enzymes or structural proteins