Final answer:
ATP is required for various types of work in cells, including muscle contraction, chemical reactions, and active transport.
Step-by-step explanation:
ATP (adenosine triphosphate) is a molecule that provides energy for cellular processes. It is involved in several types of work in cells. However, osmosis is not a kind of work that requires ATP.
Muscle contraction is an example of work that requires ATP. When muscles contract, ATP is used to supply energy for the movement. Chemical reactions in the cell also require ATP to drive them, as ATP acts as an energy source for various biochemical reactions. Finally, active transport in the cell, which involves the movement of substances against their concentration gradient, requires ATP.
Learn more about ATP and its role in cellular work