A few ions or molecules are transported across the membrane against their concentration gradient, i.e., from lower to higher concentration. Such type of transport is called active transport because it is an energy-dependent process in which ATP is utilised, e.g., Na+/K+ pump. https://youtu.be/visqfZd7Ms4 Active transport uses energy to pump molecules against a concentration gradient. Active transport is carried out by membrane-bound proteins. Hence, different proteins in the membrane play a major role in both active as well as passive transport. Cells undergoing active transport bear abundant mitochondria to provide ATP, needed to power active transport. Pumps are protein which can transport the substances. Active transport shows uphill transport because in…