Active Transport Flashcards
Active transport is transport with _
Energy expense (in and out)
Active transport moves substances from low to high concentrations against the
Gradient
One form of active transport in animal cells brings _
Glucose into intestines
Energy is used to move glucose inward to an area of high concentration to maximize _
Absorption
Machine like carrier proteins in membranes work like _
Pumps or pores in active transport
Carrier proteins gobble up molecules, change shape by _ then spit them inside or out of cell
Using energy from cell respiration
Carrier protein has active site on outside of membrane where _
Molecules can bind to it
Initial bond to carrier is _
Passive (no energy)
- After temporary link, energy supplied by cell is used to _
Alter shape of protein
- Changing shape process is driven by _
Presence of molecule
- Molecule enters _
Cell