1. How are organic molecules related to all living things?Explain. 2. Draw an Illustration showing the functions of protein in the body.
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- 1. Is there more than one way to fold a protein, given the conflicting demands of the different "R" groups and the protein existing in a watery environment? 2. Explain what an R group is. 3. Compare the backbone of a polypeptide with that of a nucleic acid. 4. Proteins perform critical functions in all of our cells. Without proteins, life wouldn’t exist. Think of some specific proteins and describe what function they perform. 5. Explain the difference between secondary and tertiary protein structures.1. Discuss and identify the primary level of protein structure. 2. Discuss and identify the secondary level of protein structure. 3. Discuss and identify the tertiary level of protein structure. 4. Discuss and identify the quaternary level of protein structure.1. Proteins perform critical functions in all of our cells. Without proteins, life wouldn’t exist. Think of some specific proteins and describe what function they perform. 2. Explain the difference between secondary and tertiary protein structures. 3. How many water molecules are produced when a dipeptide is synthesized?
- 1. Draw (or insert) the general formula of an amino acid and label the four components. Which one gives the molecule its functional role? 2. What determines the three-dimensional structure a protein will have in the cell? 3. How is the structure of a protein related to its function in the cell? Be specific and give an example.1.Describe in detail how to determine the primary structure of protein. 2.You have been given a mixture of lysine, histidine and cysteine.The isoelectric point of the amino acids are as follows; histidine 7.64 lysine:9.74 cysteine:5.02 Show how you will separate the mixture into the pure forms. State and describe any instrument that you will use to separate the components in the mixture.7. What level of protein structure is retained when proteins unfold? Using what you know about the different bonds holding protein structure together, explain why this level of protein structure is retained when the protein unfolds. 15
- 4. Which level of protein structure do proteins need to function (there may be more than one correct answer)? Explain why?2. A functional protein that is approximately 110 kDa in size has all its cysteine residues joined with disulfide bonds. It has one cysteine residue per 100 amino acids. When heated at 85°C it lost activity, but when it was allowed to cool, the activity was restored? Please answer the following questions: a) How many disulfide bonds the protein has? Show how you came up with the answer. b) What is the molecular basis for the protein behavior in restoring activity?1. To create a fully functional protein, how do their structure help in determining its function? 2. Discuss the reasons why proteins make up the largest percentage of a cell’s weight/mass? 3. How do the advent of bioinformatics help scientists understand the diversity of proteins?
- Amino acids are monomers from which proteins are constructed. Understanding the structure and characteris-tics of amino acids and the peptide bond that covalently links them to form peptides will aid in understanding larger, more complex protein structures. Proteins carry out a multitude of different and important functions. The great variety in function is accomplished through a complex and variable polymeric structure. Comprehending protein structure will give you a better understanding of how proteins carry out their roles. Why Outcomes 1. Use the acid/base characteristics (pK, data) of the 20 amino acids found in proteins to determine the charge of an amino acid at a given pH. 2. Determine the pI of a small peptide. 3. Identify the peptide bond and describe the structural features that characterize a peptide bond. 4. Use information processing skills to draw conclusions about chemical characteristics of complex molecules. Plan 1. Form teams as instructed. 2. The person whose…1. Explain how each primary structure of a protein affects its properties and how denaturation changes the structure. 2. Explain how each secondary structure of a protein affects its properties and how denaturation changes the structure.Explain in your own words the four levels of protein structure?