PROTEÍNAS: Descubra os Tipos, Classificação e Composição
Proteins: Composition, Functions, and Classification
This section delves into the significance of proteins as macromolecules in cells, exploring their composition, functions, and classification.
Types of Proteins and Amino Acids
- Proteins are essential macromolecules abundant in cells.
- Composed of amino acids linked together.
- Amino acids are organic molecules forming proteins; some are obtained through diet.
- Proteins consist of carbon, hydrogen, nitrogen, and oxygen.
Functions of Proteins
- Structural role in cells.
- Act as biological catalysts (enzymes).
- Facilitate substance transport.
- Contribute to tissue and muscle construction and repair.
- Serve as antibodies for immune defense.
Protein Classification
- Divided into Dynamic Proteins (e.g., enzymes) and Structural Proteins (e.g., collagen).
- Classified based on composition:
- Simple Proteins release only amino acids during hydrolysis.
- Conjugated Proteins release amino acids and non-peptide radicals during hydrolysis.
Protein Sources
This segment discusses food sources rich in proteins, encompassing both animal-derived and plant-based options.
Protein-Rich Foods
- Animal sources include meats, fish, eggs, milk, and dairy products.