<P> Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration -- in the direction against the concentration gradient . Active transport requires cellular energy to achieve this movement . There are two types of active transport -- primary active transport that uses ATP , and secondary active transport that uses an electrochemical gradient . An example of active transport in human physiology is the uptake of glucose in the intestines . </P>
<P> Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration -- in the direction against the concentration gradient . Active transport requires cellular energy to achieve this movement . There are two types of active transport -- primary active transport that uses ATP , and secondary active transport that uses an electrochemical gradient . An example of active transport in human physiology is the uptake of glucose in the intestines . </P>
where does a cell obtain the energy for active transport
where does a cell obtain the energy for active transport
ATP electrochemical gradient
ATP electrochemical gradient