0
What else can I help you with?
Where is the main site of peptide breakdown?
Erypsin (enzyme) in intestinal juice of large intestine breaks down the peptide chain into amino acids
Amino acids link together in a protein with what bonds?
Amino acids link together in a protein through peptide bonds. These bonds form between the amino group of one amino acid and the carboxyl group of another amino acid, resulting in a chain of linked amino acids called a polypeptide.
What part of a ribosome catalyzes the formation of peptide bonds between amino acids?
The peptidyl transferase center (PTC) of the large ribosomal subunit catalyzes the formation of peptide bonds between amino acids during translation. This center is responsible for joining the amino acid chain to form a protein.
Why do proteins have large molecular masses?
Because they are a polymer of amino acids, known as polypeptide (as the amino acids are joined together by peptide bonds). A protein can have hundreds of amino acids, therefore their molecular masses reaches well above 500-800
What is polypeptide?
The official definition of a polypeptide is a linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule. (a string of amino acids)
What is the end product of proteins?
amino acids
What organic molecules are classified as a protein?
Proteins are a class of organic molecules that are made up of chains of amino acids. Amino acids are the building blocks of proteins and are linked together by peptide bonds. Examples of proteins include enzymes, antibodies, hormones, and structural proteins like collagen.
Amino acids are the monomers that join together to form what?
Amino acids are the monomers that join together to form proteins. Proteins are large macromolecules composed of one or more polypeptide chains, which are made up of amino acids linked together by peptide bonds.
What do Trypsin and chymotrypsin digest?
Trypsin digests proteins by breaking down peptide bonds on the carboxyl side of positively charged amino acids like lysine and arginine. Chymotrypsin also digests proteins but targets peptide bonds on the carboxyl side of large hydrophobic amino acids like phenylalanine, tryptophan, and tyrosine.
Are proteins large polypeptides?
As a matter of fact, yes. However the term polypeptide is a generic name given to a sequence of amino acids. This terminology varies among scientific researchers. In general terms, a peptide is the conjunction of two or more amino acids and up to 20 to 40 amino acid residues. Therefore, we have dipeptides (two amino acid residues linked by a peptide bond), tripeptides (three amino acids), oligopeptides (from 4 up to 20 or 40 amino acids) and polypeptides. In the particular case of polypeptides is important to mention that a polypeptide is a linear polymer formed by a sequence of amino acids linked "head to tail" by peptide bonds rather than forming branches chains. The range of lenght of polypeptides goes from about 40 to more than 4000 amino acid residues, that is, from an average of 4 to over 440 kD. In general terms, when a polypeptide is too long is called protein.
How do attached amino acids make large molecules?
Attached amino acids form large molecules through a process called protein synthesis, where individual amino acids are linked together by peptide bonds in a specific sequence dictated by the genetic code. This sequence folds into complex three-dimensional structures, resulting in functional proteins. The interactions between amino acids, such as hydrogen bonds and hydrophobic interactions, further stabilize these structures, allowing for the formation of large, intricate macromolecules essential for various biological functions.
Are proteins compounds or mixtures?
Proteins are compounds made up of amino acids linked together by peptide bonds. They are not considered mixtures because they have a defined chemical structure and are composed of specific elements arranged in a particular way.
