1.1 Feedback mechanisms regulate biological systems Flashcards
supply demand applied to biological systems
like when your muscles use more sugar when you work
accelerates the decomposition or storing of sugar, or catalyzes it by the specialized proteins called
enzymes
what is feedback
a type of self regulation mechanism - to give supply to demand where the output of a process regulates that very process
like it matches to pathway of sugar consumption to the storage.
accumulation of an end product of a process slows that process
negative feedback
example of negative feedback
in respiration, the cell breaks dow n sugar, making ATP. Extra ATP “feedback” and inhibits an enzyme at the beginning of the process
an end product speeds up production
positive feedback
example of positive feedback
in blood clots, the chemicals released by platelets attracts more platelets
