Biological Molecules Nutrients. BIOLOGICAL MOLECULES NUTRIENTS NEED FOR FOOD Food is the source of energy and raw materials for raw organisms. Food substances contain a store of energy called Chemical energy.
'Shape Of Water' cast reacts to the film's creature Sally Hawkins, Octavia Spencer, Richard Jenkins, Doug Jones, Michael Shannon, and Michael Stuhlbarg tell CNN whether or not they would free the film's creature.
Each molecule of water is made up of three atoms: two hydrogen atoms locked in a sort of triangle with one oxygen atomâgiving us the famous chemical formula H2O. The slightly imbalanced structure of water molecules (explained in the box below) means they attract and stick to many different substances.