What are the non-living parts of the aquarium? how do these parts the plants and fish survive?

water is a non living part of an aquarium and it allows fish to survive because it contains oxygen in it which then let's the fish breathe underwater through their gills. It helps plants survive because plants need water and carbon dioxide which is also a component of water in an aquarium.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.