homeostasis mindmap Flashcards
homeostasis
maintaining stable internal environment
despite changes in external environment
internal environment
the environment of cells w/in multicellular organism eg. blood plasma surrounding RBC or tissue fluid
stimulus response model
stimulus, receptor, modulator, effector, response
stimulus
change in internal environment that can be detected
receptor
cell/organ that detects change OR protein that binds to signaling molecule such as hormone
effectir
molecule, hormone, cell, or organ that responds to a signal from a modulator and produces a response
response
change in an organism resulting from detection of a stimulus
negative feedback loop
original stimulus reduced by response (counteracts)
homeostasis controlled by?
neg feedback loop
cellular signaling steps
reception
transduction
response