Simple and related proteins.. Albiumin protein. casein. Thyroxine. Hemoglobin protein. Nuclear proteins associated with nuclear acids

Simple proteins:
Molecular structure:
- Consists of amino acids only.
Examples:
- Albiumin protein, which is found in leaves and seeds of plants and in human blood plasma.
Associated proteins:
Molecular structure:
Consisting of amino acids linked to other elements such as phosphorus, iodine and iron.
Examples:
- Casein protein (milk protein) containing phosphorus.
- Thyroid protein (thyroxine) containing iodine.
- Hemoglobin protein containing iron.
- Nuclear proteins associated with nuclear acids.