F214 Communication and Homeostasis

HideShow resource information
Negative feedback
a process in which any change in a parameter brings about the reversal of that change so the parameter is kept fairly constant
1 of 9
Positive feedback
a process in which any change in a parameter brings about an increase in that change
2 of 9
Homeostasis
the maintenance of constant internal environment despite external changes
3 of 9
Endocrine gland
a gland that secretes hormones directly into blood capillaries
4 of 9
Exocrine gland
a gland that secretes substances into a duct
5 of 9
Hormone
a molecule released into the blood that acts as a chemical messenger
6 of 9
Target tissue
a tissue that has specific receptors embedded in the plasma membrane that are complementary in shape to specific hormone molecules
7 of 9
First messenger
a hormone that acts as a message in the bloodstream (e.g. adrenaline)
8 of 9
Second messenger
a chemical inside the cell released in response to a hormone binding to the cell surface membrane (e.g. cAMP)
9 of 9

Other cards in this set

Card 2

Front

a process in which any change in a parameter brings about an increase in that change

Back

Positive feedback

Card 3

Front

the maintenance of constant internal environment despite external changes

Back

Preview of the back of card 3

Card 4

Front

a gland that secretes hormones directly into blood capillaries

Back

Preview of the back of card 4

Card 5

Front

a gland that secretes substances into a duct

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Communication and homeostasis resources »