Which of these observations scientists develop the cell theory? a) all cells have dna b) many different types of cells have organelles. c) cells are modified for different functions. d) all parts of a plant are made of cells.

this process is called "phosphorylation." a phosphate bond joins adenosine diphosphate to form adenosine triphosphate.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.