This type of molecule is the most common energy source for all cells and enters the cell by facilitated diffusion. the molecule is

This type of molecule is the MOST common energy source for all cells and enters the cell by facilitated diffusion. The molecule is the molecule ATP or the Adenosine Triposphate which is made in the mitochondria of cells.When the cell requires energy, the ATP lets go of a phosphate group to make ADP, this releases energy that the cell can use.

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!