claim the interaction of motrin and robitussin can cause heart attacks in children
Active transport. Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentrationâin the direction against some gradient or other obstructing factor (often a concentration gradient).
Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentrationâin the direction against the concentration gradient. Active transport requires cellular energy to achieve this movement. There are two types of active transport â 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 ...