Unit 5 Key Terms

Front

method of transporting material that requires energy

Back

active transport

Front

channel protein that allows water through the membrane at a very high rate

Back

aquaporin

Front

membrane protein that moves a substance across the plasma membrane by changing its own shape

Back

carrier protein

Front

membrane protein that allows a substance to pass through its hollow core across the plasma membrane

Back

channel protein

Front

area of high concentration adjacent to an area of low concentration

Back

concentration gradient

Front

passive transport process of low-molecular weight material according to its concentration gradient

Back

diffusion

Front

a combined electrical and chemical force that produces a gradient

Back

electrochemical gradient

Front

type of active transport that moves substances, including fluids and particles, into a cell

Back

endocytosis

Front

process of passing bulk material out of a cell

Back

exocytosis

Front

process by which material moves down a concentration gradient (from high to low concentration) using integral membrane proteins

Back

facilitated transport