Observation between crumbled paper and flat paper

One have kinks and fold everywhere while one has none it is perfectly flat.

Explanation:

you can ever get one back like the orignal (like the flat paper)

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.