Avtive Transport (membrane Pumps) Flashcards
(14 cards)
Some molecules are unable to pass through membrane unaided due to being
Insoluble in cell membrane
Some molecules are unable to pass through membrane unaided due to being too _
Large to pass through protein pores
Other molecules, like water, move from high to _ concentration
Low
Other molecules, like water, move from high to low concentration until they are
Evenly dispersed in space
Molecules attempting to evenly disperse themselves in space is a term known as _
Diffusing down the concentration gradient
If molecule has to _ it is carried by a process called active transport
Travel against concentration gradient
Active transport requires cell to _
Use energy
Two main types of active transport are _ and _
Membrane pumps
Vesicular transport
Membrane pumps are proteins that run through membrane which are able to propel _ across membrane
Small number of molecules
_ involves transport of many molecules
Vesicular
Protein ferrying chemical from inside to outside using protein pumps requires _
Energy
(Simple active transport)
Ferrying from inside to outside is called _
Simple active transport
Co-transport occurs when one molecule _ on a molecule that is diffusing across gradient
Hitches a ride
(Ride hitcher going against its gradient)
In _ downhill transport of one molecule provides energy for other molecule to be transported uphill
Counter-transport
