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General, Organic, and Biological C...

7th Edition
H. Stephen Stoker
Publisher: Cengage Learning
ISBN: 9781285853918

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Section
BuyFindarrow_forward

General, Organic, and Biological C...

7th Edition
H. Stephen Stoker
Publisher: Cengage Learning
ISBN: 9781285853918
Chapter 20, Problem 20.88EP
Textbook Problem
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Two proteins with the same amino acid composition do not have to have the same primary structure. Explain why.

Interpretation Introduction

Interpretation: The reason as to why the two proteins with the same amino acid composition do not have the same primary structure has to be stated.

Concept introduction: The primary protein structure is the order of linking of the amino acids in proteins.  The primary protein structure includes the number of amino acids linked, kind of amino acids present and the order of attachment of amino acids.

Explanation of Solution

Each protein has different amino acid sequence.  The two proteins can have the same composition but vary in the order of linking of the am...

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Chapter 20 Solutions

General, Organic, and Biological Chemistry
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Ch. 20.4 - Which of the following statements concerning the...Ch. 20.4 - Which of the following groups is positioned at the...Ch. 20.4 - Which of the following statements concerning...Ch. 20.5 - Which of the standard amino acids exist as...Ch. 20.5 - Which of the following is the zwitterion ion...Ch. 20.5 - Which of the following is the structural form for...Ch. 20.6 - Cysteine is unique among standard amino acids in...Ch. 20.6 - Disulfide bond formation between two cysteine...Ch. 20.7 - The joining together of two amino acids to form a...Ch. 20.7 - The number of peptide bonds present in a...Ch. 20.7 - Which of the following statements concerning the...Ch. 20.7 - What functional group is present in the bond...Ch. 20.7 - How many isomeric tripeptides can be formed from...Ch. 20.8 - The two best-known peptide hormones present in the...Ch. 20.8 - Which of the following peptides is an important...Ch. 20.9 - The term protein is generally reserved for...Ch. 20.9 - The presence of which of the following is a...Ch. 20.9 - Which of the following is not a distinguishing...Ch. 20.10 - Specifying the primary structure of a protein...Ch. 20.10 - When specifying the primary structure of a...Ch. 20.10 - Two different proteins that contain the same...Ch. 20.11 - Which of the following types of interactions is...Ch. 20.11 - In an helix secondary structure for proteins the...Ch. 20.11 - Which of the following statements concerning the ...Ch. 20.12 - Interactions between amino acid R groups are...Ch. 20.12 - Hydrophobic interactions associated with protein...Ch. 20.12 - R group interactions between which of the...Ch. 20.13 - Quaternary protein structure is possible for a....Ch. 20.13 - Which of the following types of interactions does...Ch. 20.14 - The complete hydrolysis of a protein produces a...Ch. 20.14 - Which of the following statements concerning...Ch. 20.15 - Which of the following levels of protein structure...Ch. 20.15 - Which of the following does not involve protein...Ch. 20.15 - Which of the following is not a denaturing agent...Ch. 20.16 - Which of the following statements concerning...Ch. 20.16 - Which of the following proteins has a triple-helix...Ch. 20.16 - Which of the following proteins is the major...Ch. 20.16 - In which of the following pairs of proteins are...Ch. 20.17 - Insulin and human growth hormone are examples of...Ch. 20.17 - Myoglobin and transferrin are examples of a....Ch. 20.17 - Enzymes are examples of a. catalytic proteins b....Ch. 20.18 - Which of the following statements concerning the...Ch. 20.18 - Which of the following statements concerning basic...Ch. 20.18 - Which of the following statements about antibodies...Ch. 20.19 - Which of the following statements about the...Ch. 20.19 - Which of the following types of plasma...Ch. 20.19 - In which of the following pairs of plasma...Ch. 20 - What is the general name for the building blocks...Ch. 20 - What element is always present in proteins that is...Ch. 20 - What percent of a cells overall mass is accounted...Ch. 20 - Approximately how many different proteins are...Ch. 20 - What is signified when an amino acid is designated...Ch. 20 - What functional groups are present in all -amino...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - How many carbon atoms are present in the R group...Ch. 20 - How many carbon atoms are present in the R group...Ch. 20 - With the help of Table 20-1, determine the name...Ch. 20 - With the help of Table 20-1, determine the name...Ch. 20 - With the help of Table 20-1, classify each of the...Ch. 20 - With the help of Table 20-1, classify each of the...Ch. 20 - With the help of Table 20-1, classify each of the...Ch. 20 - With the help of Table 20-1, classify each of the...Ch. 20 - With the help of Table 20-1, give the names of the...Ch. 20 - With the help of Table 20-1, give the names of the...Ch. 20 - Which standard amino acids have three-letter...Ch. 20 - Which standard amino acids have one-letter...Ch. 20 - How many amino groups and how many carboxyl groups...Ch. 20 - How many amino groups and how many carboxyl groups...Ch. 20 - In what way is the structure of the amino acid...Ch. 20 - Which two of the standard amino acids are...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Indicate whether or not each of the substances in...Ch. 20 - Indicate whether or not each of the substances in...Ch. 20 - Indicate whether or not the designation...Ch. 20 - Indicate whether or not the designation...Ch. 20 - Identify the limiting amino acid(s) present in...Ch. 20 - Identify the limiting amino acid(s) present in...Ch. 20 - To which family of mirror-image isomers do nearly...Ch. 20 - In what way is the structure of glycine different...Ch. 20 - Draw Fischer projection formulas for the following...Ch. 20 - Draw Fischer projection formulas for the following...Ch. 20 - Answer the following questions about the amino...Ch. 20 - Answer the following questions about the amino...Ch. 20 - At room temperature, amino acids are solids with...Ch. 20 - At room temperature, most amino acids are not very...Ch. 20 - Draw the zwitterion structure for each of the...Ch. 20 - Draw the zwitterion structure for each of the...Ch. 20 - Draw the structure of serine at each of the...Ch. 20 - Draw the structure of glycine at each of the...Ch. 20 - Explain what is meant by the term isoelectric...Ch. 20 - Most amino acids have isoelectric points between...Ch. 20 - Glutamic acid exists in two low-pH forms instead...Ch. 20 - Arginine exists in two high-pH forms instead of...Ch. 20 - In a low-pH aqueous solution, indicate whether...Ch. 20 - In a high-pH aqueous solution, indicate whether...Ch. 20 - When two cysteine molecules dimerize, what happens...Ch. 20 - What chemical reaction involving the cysteine...Ch. 20 - What two functional groups are involved in the...Ch. 20 - Write a generalized structural representation for...Ch. 20 - For the tripeptide GlyAlaCys a. What amino acid is...Ch. 20 - For the tripeptide SerValMet a. What amino acid is...Ch. 20 - Draw a condensed structural representation for...Ch. 20 - What are the two alternating structure units...Ch. 20 - Draw a complete condensed structural...Ch. 20 - Draw a complete condensed structural...Ch. 20 - With the help of Table 20-1, identify the amino...Ch. 20 - With the help of Table 20-1, identify the amino...Ch. 20 - With the help of Table 20-1, assign an IUPAC name...Ch. 20 - With the help of Table 20-1, assign an IUPAC name...Ch. 20 - Draw condensed structural formulas for the...Ch. 20 - Draw condensed structural formulas for the...Ch. 20 - For the tripeptide AlaValGly which amino acid...Ch. 20 - For the tripeptide SerArgIle which amino acid...Ch. 20 - Consider the tripeptide tyrosylleucylisoleucine....Ch. 20 - Consider the tripeptide leucylvalyltryptophan. a....Ch. 20 - Explain why the notations SerCys and CysSer...Ch. 20 - Explain why the notations AlaGlyValAla and...Ch. 20 - There are a total of six different amino acid...Ch. 20 - There are a total of six different amino acid...Ch. 20 - Compare the structures of the protein hormones...Ch. 20 - Compare the protein hormones oxytocin and...Ch. 20 - Compare the binding-site locations in the brain...Ch. 20 - Compare the structures of the peptide...Ch. 20 - What is the unusual structural feature present in...Ch. 20 - What is the major biochemical function of...Ch. 20 - What is the major difference between a monomeric...Ch. 20 - What is the major difference between a simple...Ch. 20 - Indicate whether each of the following statements...Ch. 20 - Indicate whether each of the following statements...Ch. 20 - What is meant by the primary structure of a...Ch. 20 - Two proteins with the same amino acid composition...Ch. 20 - How many different primary structures are possible...Ch. 20 - How many different primary structures are possible...Ch. 20 - How many different primary structures are possible...Ch. 20 - How many different primary structures are possible...Ch. 20 - Draw a segment of the backbone of a protein that...Ch. 20 - Draw a segment of the backbone of a protein that...Ch. 20 - In an helix secondary structure for a protein a....Ch. 20 - In a pleated sheet secondary structure for a...Ch. 20 - Indicate whether each of the following statements...Ch. 20 - Indicate whether each of the following statements...Ch. 20 - What is meant by the statement that a portion of...Ch. 20 - Why is the phrase unstructured segment of a...Ch. 20 - State the four types of attractive forces that...Ch. 20 - What is the difference between the types of...Ch. 20 - Give the type of amino acid R group that is...Ch. 20 - Classify each of the interactions listed in...Ch. 20 - With the help of Table 20-1, specify the nature of...Ch. 20 - With the help of Table 20-1, specify the nature of...Ch. 20 - Indicate whether each of the following statements...Ch. 20 - Indicate whether each of the following statements...Ch. 20 - What is meant by the quaternary structure of a...Ch. 20 - Not all proteins have quaternary structure....Ch. 20 - Compare the types of noncovalent interactions that...Ch. 20 - Quaternary protein structure is more easily...Ch. 20 - Identify all possible products when the tripeptide...Ch. 20 - Identify all possible products when the tripeptide...Ch. 20 - Identify all possible products when the tripeptide...Ch. 20 - Identify all possible products when the tripeptide...Ch. 20 - How many different di- and tripeptides could be...Ch. 20 - How many different di- and tripeptides could be...Ch. 20 - Identify the primary structure of a hexapeptide...Ch. 20 - Identify the primary structure of a hexapeptide...Ch. 20 - Draw structural formulas for the products obtained...Ch. 20 - Draw structural formulas for the products obtained...Ch. 20 - Which structural levels of a protein are affected...Ch. 20 - Why is complete hydrolysis of a protein not also...Ch. 20 - In what way is the protein in a cooked egg the...Ch. 20 - Why is cooked protein more easily digested than...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Indicate whether or not each of the following...Ch. 20 - Contrast fibrous and globular proteins in terms of...Ch. 20 - Contrast fibrous and globular proteins in terms of...Ch. 20 - Classify each of the following proteins as a...Ch. 20 - What is the major biochemical function of each of...Ch. 20 - Using the list in Section 20-17, characterize each...Ch. 20 - Using the list in Section 20-17, characterize each...Ch. 20 - What is the function classification for proteins...Ch. 20 - What is the function classification for proteins...Ch. 20 - What two nonstandard amino acids are present in...Ch. 20 - Where are the carbohydrate units located in...Ch. 20 - What is the function of the carbohydrate groups...Ch. 20 - What is the role of vitamin C in the biosynthesis...Ch. 20 - What is the difference between an antigen and an...Ch. 20 - What is an immunoglobulin?Ch. 20 - Describe the structural features of a typical...Ch. 20 - Describe the process by which blood...Ch. 20 - Describe the general overall structure of a plasma...Ch. 20 - In what chemical form does cholesterol usually...Ch. 20 - What are the four major classes of plasma...Ch. 20 - What do the designations VLDL, LDL, and HDL stand...Ch. 20 - What factor determines the density of a plasma...Ch. 20 - As the lipid content of a plasma lipoprotein...Ch. 20 - What is the biochemical function of the following?...Ch. 20 - What is the biochemical function of the following?...

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