GCE O'level Ordinary Biology (II. MAINTENANCE AND REGULATION OF LIFE PROCESSES) Mind Map on Coordination and Response, created by Mactavish on 06/23/2014.
chemical substance,
produced by a gland,
carried by the blood,
which alters the
activity of one or
more specific target
organs and is then
destroyed by the liver
Endocrine gland
Regulation of
blood glucose
Insulin
Secreted when
blood glucose
conc is to high
IL of pancreas secretes
more insulin causing liver
to convert glucose into
glycogen and increase the
uptake of glucose in cells
This thus cause blood glucose
conc to drop back to normal
Glucagon
Secreted when
blood glucose
conc is very low
IL of pancreas secretes
more glucagon, which
causes liver to convert
glycogen into Glucose
This cause
blood glucose
conc to rise
back to
normal level