types of particle movement Flashcards
1
Q
simple diffusion
A
no energy used
gases and lipids
no membrane structures involved
high - low concentration gradient
2
Q
facilitated diffusion
A
no energy used
large polar molecules and ions
uses channel/carrier proteins
high - low concentration gradient
3
Q
active transport
A
uses ATP / energy
large polar molecules and ions
uses carrier proteins and pumps
low - high concentration gradient
4
Q
osmosis
A
no energy used
water
no membrane structures involved (other than aquaporins in kidneys)
high - low water potential
