Homeostasis And Metabolism Flashcards
homeostasis
overall steady state within the organism
extracellular fluid
includes all body fluids outside the cells (blood plasma, lymph, fluid between cells in tissue)
intracellular fluid
contained inside the cells
negative feedback
method for maintaining homeostasis, a controlled system based on information returning to a source.
negative feedback loop
sensor, control center, effector
sensor
gathers information about a given body condition
control center
compares the sensor inputs with the set point and sends a corrective signal if necessary
effector
responds to the signal
insulin
a hormone produced by the pancreas that acts as a signal traveling through the bloodstream to effector cells
metabolism
made up of life-sustaining reactions that occur within the body systems
catabolism
a type of activity of metabolism where complex substances are broken down into simpler compounds
adenosine triphosphate (ATP)
energy obtained by catabolism nutrients used to form a compound called “Energy currency”
anabolism
type of activity in metabolism where simple compounds are used to manufacture materials needed for growth, function, and tissue repair
