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3- peptide ,Protein organization worksheet Assignment

3- peptide ,Protein organization worksheet Assignment

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Name: ID: Biochemistry Module In this worksheet, we will practice describing the synthesis, structures, and functions of proteins. Q1: Which of the following best explains the role of hydrogen bonds in protein structure? • • • • A Hydrogen bonds form within amino acids to join the carboxyl group to the amino group. B Hydrogen bonds form between amino acids to hold the protein in its secondarystructure shape (e.g., alpha-helix). C Hydrogen bonds form between amino acids to hold them in a polypeptide chain. D Hydrogen bonds form between amino acids and water molecules to contribute to the quaternary structure of the protein. Q2: Proteins are complex macromolecules formed from polypeptide chains. What monomers join to form polypeptides? • A Glycerol • B Lipids • C Fatty acids • D Simple sugars • E Amino acids Q3: Which of the following best describes the primary structure of a protein? • A The primary structure of a protein refers to the sequence of amino acids in its polypeptide chain. • • • B The primary structure of a protein is the complex 3D structure formed when multiple polypeptides interact and combine. C The primary structure of a protein is the 3D structure that forms due to interactions between the R groups of amino acids. D The primary structure of a protein is the folded structure (alpha-helix or beta-sheet) formed by additional bonds formed in the polypeptide chain. Q4: Which of the following best describes the quaternary structure of a protein? • • • • A The quaternary structure of a protein is the 3D structure that forms due to interactions between the R groups of amino acids. B The quaternary structure of a protein is the folded structure (alpha-helix or betasheet) formed by additional bonds formed in the polypeptide chain. C The quaternary structure of a protein is the complex 3D structure formed when multiple polypeptides interact and combine. D The quaternary structure of a protein refers to the sequence of amino acids in its polypeptide chain. Q5: Which of the following best describes the secondary structure of a protein? • • • • A The secondary structure of a protein refers to the sequence of amino acids in its polypeptide chain. B The secondary structure of a protein is the folded structure (alpha-helix or betasheet) formed by additional bonds that are formed in the polypeptide chain. C The secondary structure of a protein is the 3D structure that forms due to interactions between the R groups of amino acids. D The secondary structure of a protein is the complex 3D structure formed when multiple polypeptides interact and combine. Q6: Which of the following best explains the structure of a polypeptide? • A A polypeptide is a protein formed by the joining of three amino acids to a glycerol molecule. • • • B A polypeptide is a chain of amino acids joined together by carboxyl bonds between the amino groups of each amino acid. C A polypeptide is a chain of amino acids joined together by peptide bonds between the carboxyl group of one and the amino group of another. D A polypeptide is a chain of proteins joined by peptide bonds between the hydrogens of each protein. Q7: Which of the following best describes the tertiary structure of a protein? • • • • A The tertiary structure of a protein is the folded structure (alpha-helix or beta-sheet) formed by additional bonds that are formed in the polypeptide chain. B The tertiary structure of a protein is the complex 3D structure formed when multiple polypeptides interact and combine. C The tertiary structure of a protein refers to the sequence of amino acids in its polypeptide chain. D The tertiary structure of a protein is the 3D structure that forms due to interactions between the R groups of amino acids. Q8: The following is a list of bonds found in biological molecules: I. II. III. IV. V. Hydrogen Ionic Phosphodiester Disulfide bridges Glycosidic What bonds are commonly present in the tertiary structure of proteins? • A I only • B I, II, and IV • C I and IV only • D II, III, and IV • E I, II, and III Q9: Keratin is a long protein found in hair and nails, with many repeats of the sulfur-containing amino acid cysteine. Using the table provided, determine the group of proteins that keratin is most likely to belong to. • A Globular • B Fibrous • C Conjugated Q10: Part of the basic structure of an amino acid is provided. Give the molecular formula of the functional group that is missing. • A NH+4 • B NH2 • C CH3 • D COOH 11. A peptide bond is the linkage between: a. The carbonyl carbon of the carboxylic acid of one amino acid and the nitrogen of the amine of THAT amino acid b. The oxygen of the carboxylic acid of one amino acid and the carbon next to the amine of ANOTHER amino acid c. The carbonyl carbon of the carboxylic acid of one amino acid and the carbon NEXT TO the amine of another amino acid d. The carbonyl carbon of the carboxylic acid of one amino acid and the nitrogen of the amine of ANOTHER amino acid 12. What does N-terminus refer to? a. The end of a protein with a free carboxylic acid group b. The first amino acid with the abbreviation ‘N’ in the protein c. The end of a protein with a free amine group d. A protein chain 13-Proteins are built in the following sequence: A: two or more protein units attach to one another, or the protein attaches to a non-protein structure B: amino acid sequence is set C: chain folds back on itself D: beta pleating or spiraling occurs answer choices Primary: A, Secondary: B, Tertiary: C, Quaternary: D Primary: B, Secondary: D, Tertiary: C, Quaternary: A Primary: C, Secondary: D, Tertiary: B, Quaternary: A Primary: D, Secondary: B, Tertiary: C, Quaternary: A 14-Which protein? It is the most abundant protein in your body. It is the major component of connective tissues that make up several body parts, including tendons, ligaments, skin and muscles. It has many important functions, including providing your skin with structure and strengthening your bones. 15-Which letter corresponds to the tertiary protein structure? 16-give short notes on the structure of label E 17-Which letter corresponds to an beta sheet? 18-Which letter corresponds to alpha helix? 19- A new drug is developed which selectively cleaves covalent bonds between two sulfur atoms of nonadjacent amino acids in a polypeptide chain. Which level of protein structure in affected molecules would be most directly affected by the drug? Choose 1 answer: A. B. C. D. Secondary structure Tertiary structure Primary structure Quaternary structure 20-The image shows the amino Valine. Identify the R-group and identify which property this R-group is likely to belong? 21-Which parts of the amino acid react with amino acid to form a peptide bond? another

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3- peptide ,Protein organization worksheet Assignment

3- peptide ,Protein organization worksheet Assignment

      1. Information 5 3 2 0
        Cover Page Given in proper APA formatting Issues with spacing or missing information Issues with spacing and missing information APA formatting is not followed.
        Abstract Between 150 – 250 words Contains slightly more or less than required range. (+/- 10 Words) Contains more or less than range allowed Did not include an abstract
        Introduction Expanded on all points from the outline Expand on most points Expanded on some points Restated listed points on outline
        Thesis Statement Has a clear thesis statement in introduction Thesis statement either has errors and/or is not in the introduction Thesis statement is not in proper format No thesis statement present in the paper and/or is not in the introduction
        Body Contains proper information to back up the respective main point of the thesis statement Contains some information to back up the respective main point of the thesis statement but could use more Contains very little information to back up the respective main point of the thesis statement Contents goes off topic of what the thesis statement is discussing
        Conclusion Restates the thesis statement and wraps up the paper. Restates the thesis statement and/or wraps up the paper but with some loose ends Does not restate the thesis statement and/or has lots of loose ends in the paper Contains new information in the conclusion and/or does not summarize the paper
        Person Contains no First or Second person perspective Has an instance of First or Second person perspective  

         

         

         

         

         

        Contains more than one instance of First or Second Person perspective
        Max: 35

         

        Student Earned:

         

         

         

         

        Structure 10 5 3 0
        Formatting Paper follows all guidelines as stated in the syllabus, Paper is in full APA formatting Contains 1-2 Errors Contains 3-5 Errors Did not proofread or Edit paper
        Mechanics & Grammar No errors 3-5 Errors 6-8 Errors Did not edit or proofread.
        Max 20 Student Earned:
        APA Style 15 10 5 0
        Paper Length 5-7 Pages not including Cover page, Abstract, References, etc. 4 pages not including CP, Abs, and Ref 3 pages not including CP, Abs, and Ref 2 or less pages of content OR contains more than 8 Pages
        Reference No errors Has few to little errors Has many errors Not in APA Format, contains less than 7 references, or has any amount of references older than 10 years
        In-text Citations No errors Has few to little errors Has many errors Not in APA Format or missing two or more in-text citations
        Max 45 Student Earned:
        Totals from Each Section:
        Section 1: Section 2: Section 3: Final Grade:

        uNotice: Each day that the assignment is late there is a 5 point reduction on the overall grade.

        uWhen error is stated it is in reference to the instances of the error not the type of error.  Example: In-text citation for multiple authors occurs for two of the references that counts as two errors not one.

        uAny mention of the paper within the paper will result in a FIVE (5) point deduction per instance. Example: “In this paper…; In conclusion….; In summary…; In this essay….;

        Also Read: CU Health Care Today Answer To Essay Assignment

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