Peptid Study guides, Class notes & Summaries

**Amino Acids, Peptides, and Proteins** Amino Acids Found in Proteins • Amino acids contain two functional groups, an amino group (-NH2) and a carboxyl group (-COOH) which are formed on a carboxylic acid. o Alpha amino acids are those where both functional groups are attached to the same carbon. o Side chain/R group and hydrogen atom are also attached to alpha carbon.  Side chain determines the properties of amino acids and its functions. Terminology • There are a variety of differ...

4. A pentapeptide was found to have the sequence) Aa pentapeptide s reagent, folloposition (not sequence) Ala Arg Gly Pro Trp. Reaction of the s, gave the DNP derivative of proline. Treatment of the pentapeptide a aproduced alanine. Treatment of the pentapeptide with trypsin gave a tetrapeptide hat is the sequence of the pentapeptide? (Spts) which, when treated with chymotrypsin, produced a tripeptide. W tide. However, after treating it with 5. A student isolated a protein and assumed it wa...

used by cells for energy and stucture; monosaccharides (glucose), disaccharides (sucrose, maltose, lactose), storage polysaccharides (starch [plants], glycogen [animals]), structural polysaccharides (chitin [fungi], cellulose [arthropods])

GVSU CHM 232 Lecture WS w Professor Leonard - Fall 2022

- How are peptides formed? - Primary structure of peptides - How do proteins know how to fold? - Secondary structure of peptides - What are alpha-helices? - What are beta strands? - Structure of beta-sheet - Tertiary structure of peptides - What is a disulfide bond and how are they formed? - Quaternary structure of peptides

Class notes for peptides and proteins

Antibiotics that weaken the peptidoglycan cell wall make a bacterium more prone to Choose one: O A. phagocytosis by macrophages. O B. detaching from surfaces. C. osmotic lysis. D. shrinkage in hypertonic solutions. E. starvation Solution C. osmotic lysis. Penicillins and cephalosporins, as well as other beta-lactam antibiotics targets the peptidoglycan synthesis making the cell wall weak leading to osmotic lysis of the bacterium.

Atrial Natriuretic Peptide (ANP) Questions with complete solutions ANP is released into the blood from the cells in the heart atria. The stimulus for its release is? increased stretch of these chambers, which is an indication of both increased blood volume and blood pressure ANP DECREASES both blood pressure and blood volume by binding to what target organs? blood vessels and kidneys Blood vessels Dilates systemic blood vessels, resulting in decreased total resistance. Systemic...

Amino acids are the monomers from which proteins are made. The general structure of an amino acid as: where NH2 represents an amine group, COOH represents a carboxyl group and R represents a side chain. The twenty amino acids that are common in all organisms differ only in their side group. A condensation reaction between two amino acids forms a peptide bond. Dipeptides are formed by the condensation of two amino acids. Polypeptides are formed by the condensation of many amino acids....