Describe the role played by protein pumps during active transport in plants.

(N/A) In plant cells,active transport occurs against the concentration gradient,i.e.,from a region of lower concentration to a region of higher concentration.
The process of active transport involves specific protein pumps.
The protein pumps are made up of specific proteins called trans-membrane proteins.
These pumps first make a complex with the substance to be transported across the membrane,using the energy derived from $ATP$.
The substance finally gets liberated into the cytoplasm as a result of the dissociation of the protein-substance complex.