Growth and change
Ability to reproduce
Maintain homeostasis
Responsiveness to the environment
The correct answer is active transport.
For this kind of transport the cell requires energy, usually in the form of ATP, to move a molecule against its concentration gradient.
There are two types of active transport:
Primary active transport which directly uses a source of chemical energy to move molecules. Example: sodium-potassium pump
Secondary active transport (cotransport), which uses an electrochemical gradient (generated by active transport)as an energy source to move molecules. Example: glucose symporter SGLT1
