You haven't given any reference. However, they are referred to as the building blocks of life because, for example, in Prokaryotic cells, which are unicellular, everything required for them to survive and reproduce is all found within a single cell.
It is a force resulting from the redistribution of energy contained by electrons, which tends to bind atoms together to form different types of molecules
C. Reactant and product concentrations in the test tube are different from those in the cell.
Explanation:
Cells convert some of the energy from ATP hydrolysis in to different forms of energy other than heat. ATP energy does not always generate more heat. Many times, energy is used for different purposes.