Protein -- A Macromolecule

C, H, O, only

C, H, O and N

C, H, O, P

C, H, O, S

Polypeptide

Monoscaccharide

Fatty acid

Amino acid

Carboxylic acid portion

Variable portion

Amine portion

The sequence of amino acids makes up the primary shape. The polypeptide chains fold into 3-dimensional shapes that make up various structures.

The amino acids primary shape is a 3-D structure.

Carbohydrates form polypeptide chains.

Proteins are flat structures. 

Benedict's test

Iodine test

Paper bag/oily test

Biuret Test

Cellulose

Enzymes

Bones and Muscles

Transport molecules (including Hemoglobin)