Drag each of the following items into the corresponding boxes to indicate the protein structural level that is predominantly affected by the chemical interactions listed. Some items may be placed in more than one box. Reset Help Hydrogen bonds between polar groups in amino acid side chains Hydrophobic interactions between amino acid side chains lonic bonds between positively- charged and negatively-charged amino acid side chains Peptide bonds Hydrogen bonds between carbonyl oxygens and amino nitrogens within a polypeptide backbone Disulfide bonds Primary structure Seconday structure Tertiary structure Quaternary structure

Q: In the figure below showing changing surface charges on a protein molecule, explain why the surface…

A: The isoelectric point (pI) is the pH at which the protein has no net charge. At this stage, the…

Q: The image below shows the different interactions responsible for the spontaneous folding of a…

A: According to Anfinsen's hypothesis the sequence or primary structure of a protein f=determines the…

Q: polymer or large biological molecule  monomer or smaller subunit  one funtion   name od covalent…

A: Biomolecules refer to carbon- based organic compound that are produced by a living organism. These…

Q: Which of the following statements about protein is correct? (Choose three). * During polypeptide…

A: Introduction : Proteins are made of amino acids. A protein is made up of one or more chains of amino…

Q: The β-sheet structure is the secondary structure of the protein which is a sideways folded structure…

A:

Q: When a polypeptide is made, which of the following parts of the monomer are NOT part of the…

A: They are the polymer of alpha-amino acids coded by triplets of bases on the mRNA. These amino acids…

Q: Linus Pauling’s a-helix structure (found in hemoglobin, myoglobin, actin, myosin, and keratin) is…

A: Proteins are linear polymers, which are composed of monomer units called amino acids. The function…

Q: Drag the correct amino acid into the corresponding box according to the roles they play. Reset Help…

A: Amino acids are the biological molecules which combines with each other to form proteins /…

Q: Which of these is an advantage of NMR over X-ray crystallography when it comes to determining the…

A: X-ray crystallography and nuclear magnetic resonance are the two most common methods for determining…

Q: Which of the following is the TRUE statement? When found together, a helices and ß sheets are…

A: Protein folding refers to the process by which the proteins fold into a three-dimensional structure…

Q: Which statement about quaternary structure is TRUE?    Quaternary structure is unaffected by acids…

A: Please follow step 2 for detailed explanation.

Q: What makes up the backbone structure of proteins?   sugars and phosphates sulfur and carbon atoms…

A: The backbone structure of proteins is made up of nitrogen and carbon atoms. Protein backbone has a…

Q: Which of the following constitutes the primary structure of a protein? O the folding of a…

A: Proteins are macromolecules and are complex components, and are known as building blocks which make…

Q: Polar amino acids are largely exposed in the exterior of the protein and in contact with aqueous…

A: Proteins are polypeptide molecules that are made up of 20 different types of amino acids. Amino…

Q: The image below shows an amino acid at physiological pH. Answer the following questions about this…

A: Amino acids can be referred to as the monomers responsible for forming proteins. Each amino acid is…

Q: What are different kind of forces present in primary , secondary and Tertiary structure of protein .…

A: The basic structural and functional units of proteins are amino acids. They are the monomeric units…

Q: The primary structure of a protein is an alpha helix or a pleated sheet.   the amino acid sequence…

A: There are four essential biomolecules present in the living world: Carbohydrates: sugars Proteins:…

Q: What maintains the secondary structure of protein: A) peptide bond. B) Hydrogen bonds between the…

A: Proteins are complex biomolecules, which are composed of one or more chains of amino acids in a…

Q: Peptide bond is /has ……………. This structural feature prevents protein to sample all possible…

A: In proteins, different amino acids are joined by the formation of peptide bond which is formed…

Q: b. CH CH2 | H;Č CH3 - Polypeptide backbone H3C CH3 ! CH C=OH -CH2+S-S CH2– а. CH2…

A: The structural organization of protein was classified into four different levels and they are…

Q: A protein has a molecular weight of 24kDa.  You want a 0.5µM solution of the protein in 75mL.  How…

A: Given information Protein molecular weight- 24kDa The concentration of the solution to be made-…

Q: Which of the following peptides will likely form an irregular structure? A-D-I-E-L-Y-F-H-I-C-V-D-E…

A: The key to perfect structure of peptides is amino acids  Irregular peptide structure don't form…

Q: Which of the following properties of a protein is least likely to be affected by denaturing agents?*…

A: Proteins are the biopolymers that are organised in four levels of structural organisation. Primary…

Q: Which of the following is an incorrect characterization for the protein hemoglobin? tetrameric…

A: Proteins are classified as Simple proteins ( globular and fibrous proteins), Conjugated proteins,…

Q: You are supplied with an unknown protein that consists of more than 130 amino acids. Furthermore…

A: Proteins are the most abundant biomolecule constitute nearly 75% of the total body weight. Proteins…

Q: Which one of the following types of bond is principally responsible for holding the α-helix shape of…

A: There is a different shape of a protein in its secondary structure.

Q: Figure 1 below shows one of the 20 amino acids that make up proteins. Recall that carbon can form…

A: Figure 1 based question is answered only as figure 2 is missing in the question. Amino acids are the…

Q: Proteins occurring in the b-pleated sheet structure Multiple Choice are relatively inelastic.…

A: INTRODUCTION Beta pleated structure of protein This contain beta strands held together by two or…

Q: Below is the primary structure of a protein. Вс D R H H H || II || E C - N - с — С — N — С — С — N —…

A: Polypeptides are unbranched, linear polymers that are composed of amino acids linked together by…

Q: Which of the following amino acid-classification pair is incorrect? O Lysine-basic amino acid O…

A: Amino acids are building blocks of protein. All Amino acids consist of - COOH ( carboxyl group ) and…

Q: Discuss the different structures (primary, secondary, tertiary, and Quaternary structures) of…

A: Proteins are amino acid polymers. The sequence of amino acids determines their three-dimensional…

Q: A protein that is normally found in an aqueous solution has these amino acids in its primary…

A: Proteins are composed of different amino acids with different chemical nature. Amino acids are…

Q: a beta-pleated sheet structure formed by hydrogen bonding between the backbone atoms the structure…

A: Proteins are linear, unbranched polymers constructed from 22 standard α-amino acid. There are four…

Q: Which of the following statements about proteins is FALSE? Quaternary structure involves the…

A: Proteins are series of amino acids combined with each other by amine or peptide bonds. These large…

Q: Select the true statements about protein secondary structure. In an a-helix, the side chains are…

A: The polypeptide chain undergoes folding in order to acquire a three dimensional conformation that is…

Q: The following is an example of which level of protein structure? What bonds form this level of…

A: Proteins are polymer of 22 alpha-amino acids. Protein structure has four levels of organisations -…

Q: When comparing similarities among multiple protein structures, which of the following is false? None…

A: Proteins can be defined as the major biomolecule that is made up of a combination of twenty amino…

Q: Hydrophobic interaction. As a polypeptide folds into its functional shape, amino acids with…

A: There are several levels of organization that occurs when a polypeptide chain folds into its…

Q: Name two(2) interactions that maintain tertiary protein structure.

A: The term tertiary structure refers to the unique three dimensional conformations that globular…

Q: After denaturation of a tertiary protein like lysozyme (with one polypeptide chain), the only…

A: The primary structure is the most basic level of protein organization in which the adjacent amino…

Q: In your own words discuss the different structures (primary, secondary, tertiary, and Quaternary…

A: The folded structure of a protein has different levels of organization. These are primary,…

Q: Which statement is true regarding denaturation process?   Question 21 options:   Protein…

A: Introduction: Proteins are synthesized on ribosomes as linear polypeptides. As they are synthesized…

Q: Match the protein structure terms on the left with the descriptions on the right. v(Choose) commonly…

A: Proteins are the unbranched polymer of amino acids. There are four level of structural organization…

Q: How do the following noncovalent interactions help to stabilize the tertiary and quaternary…

A: The protein undergoes several conformations to attain the mature functional protein.

Q: The 3 structure of a protein incorporates any 2 structure the protein has, but results primarily…

A: A protein undergoes many types of interaction in order to stabilize itself. These interactions are…

Q: Which of the following pairs of amino acids can have intermolecular hydrogen bonding between the…

A: The secondary structure of proteins is stabilized by hydrogen bonding. mainly it…

Q: There is parts A-D for the picture provided. A) A peptide has the sequence,…

A: The pKa is the negative value of the logarithm of Ka.  The pKa of the ionizable groups of an amino…

Q: Where is hydrogen bonding observed in proteins? Between one part of the protein backbone and another…

A: Proteins are the biomolecules that are formed from amino acids joined by peptide bonds. There are…

Q: The protein hemoglobin, consisting of four polypeptides (two a-globin chains, with 141 amino acids…

A: The protein Hemoglobin comprises of four polypeptide chains, i.e, two alpha and two beta chains.…

Q: Which of the following statements are correct about protein structure (select all that apply)?   A.…

A: The three-dimensional configuration of units in an amino acid monomer is known as protein structure.…

Proteins

We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.  

Protein Expression

The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.