Lab Section- Date Proteins and Amino Acids OBSERVATIONS AND RESULTS of Proteins
ID: 589335 • Letter: L
Question
Lab Section- Date Proteins and Amino Acids OBSERVATIONS AND RESULTS of Proteins and Amino Acids the difference in appearance between the protein and amino acid solutions, and 1. Solutions explain why this difference exists 2 Observation of a Protein Hydrolyzate (Product of Protein Hydrolysis) List the ingredients in a bouillon cube. Indicate which ingredients refer to amino acids and which to proteins. Suggest how the protein might have been hydrolyzed to give the amino acids. It takes much longer for amino acids from ingested protein to appear in the bloodstream than it does for those from bouillon. Explain. Under what conditions would bouillon be preferred to meat in the diet? Dialysis of Proteins and Amino Acids List the solutions and the corresponding tests which you propose to use to determine whether dialysis has occurred 3. Now list the result of each test and your conclusions concerning dialysis.Explanation / Answer
Solutions:
Proteins consist of amino acids which are characterized by the -CH(NH2)COOH substructure. Nitrogen and two hydrogens comprise the amino group, -NH2, and the acid entity is the carboxyl group, -COOH. Amino acids link to each when the carboxyl group of one molecule reacts with the amino group of another molecule, creating a peptide bond -C(=O)NH- and releasing a molecule of water (H2O).
The 23 or so amino acids are the molecular building blocks of proteins. According to one accepted classification, 9 are termed indispensable amino acids (IAA, sometimes called essential), meaning that they must be supplied from some food or supplement source; the others, which used to be classified simply as nonessential, are now more correctly termed dispensable amino acids (DAA) or conditionally indispensable, based on the body's ability to synthesize them from other amino acids.
Amino acids are the basic building blocks of enzymes, hormones, proteins, and body tissues.
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