An organism that can make its own food by using energy from its surroundings.

An organism that eats other organisms or organic matter.

An organism that gets energy by breaking down the remains of dead organism or animal wastes and consuming or absorbing the nutrients.

A molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body.

A class of energy giving nutrients that includes sugars, starches, and giver; contains carbon, hydrogen, and oxygen.

A type of biochemical that does not dissolve in water; fats and steroids are lipids.

A lipid that contains a phosphorous and that is a structural component in cell membranes.

Adenosine Triphosphate, a molecule that acts as the main energy source for cell processes.

A molecule made up of subunits called nucleotides.