An amino acid has an R-group that is negatively charged at cellular pH. Which of the following categories would best describe it? nonpolar basic acidic uncharged and polar

Q: When cis peptide bonds are found in proteins, which amino acid is most often flanking that peptide…

A: A peptide bond is a type of covalent bond that is planar and exists in two-state .they are cis…

Q: What naturally occurring chemical bond befalls between successive amino acids in conjunction with…

A: A peptide bond can be described as a chemical bond which is usually formed in between two molecules…

Q: Where would the leucine side chain most likely be found in a protein dissolved in water? In the…

A: Amino acids are the building blocks of proteins. The amino acid polymer which joins together with…

Q: Substances that contain both hydrophobic and hydrophilic regions are referred to as -__ molecules.

A: On both the inside and outside of the cell, the hydrophilic areas of phospholipids form hydrogen…

Q: Which of the following is true about a peptide bond: Electron delocalization occurs between the…

A: A peptide bond is formed between the α-nitrogen atom of one amino acid and the carbonyl carbon of…

Q: Which of the following is a drawback of using base hydrolysis during amino acid composition? O…

A: A protein is consisted of several amino acids bond together in sequence with peptide bond. To…

Q: Which of the following amino acid structures would neither bear a positive nor a negative charge…

A: Amino acids are the molecules that contain amino as well as carboxyl group. Alpha-amino acids have…

Q: Which level of protein folding is formed by interactions between amino acid side chains/R groups?…

A: Biomolecules are organic compounds found in living organisms. All living organism will have these…

Q: Which of these components is unique to RNA (rather than DNA)? uracil thymine adenine guanine…

A: the correct answer is "uracil ".…

Q: Amphipathic molecules mean that they have both :polar and nonpolar parts, for example

A: An amphipathic molecule could be a molecule that has polar and non-polar elements.

Q: Which one of the following is non-chiral ?amino acid alanine .1 valine .2 lysine .3 none of all .4…

A: Amino acids are monomers units of peptide chains and protein molecules. They are essential compounds…

Q: Which of the following statements is not true? O RNA contains ribose and DNA contains deoxyribose O…

A: A nucleotide is what occurs before RNA and DNA, while the nucleoside occurs before the nucleotide…

Q: Which of the following does NOT contain a polar, uncharged R group? glutamine serine threonine…

A: Amino acids These are the builiding blocks of proteins. These are divided into three groups on the…

Q: Which of the following types of bonds are responsible for the secondary structures of proteins?…

A: Almost every function in living organisms depends on proteins. These are the biomolecules composed…

Q: Which amino acid from the following list best fits the alpha helix? lysine alanine glycine serine

A: When linear chain of amino acids folds to form recurring structural patterns, it forms secondary…

Q: Which of the following is true about a peptide bond: Electron delocalization occurs between the…

A: Electron delocalization reaction in the peptide bond is given below.

Q: ionic / covalent / hydrogen / electro ionic or none

A: The biological bonds or interactions present in living systems are of two types: Covalent and…

Q: Which of these functional groups is involved in the building of a nucleic acid polymer from a…

A: A functional group is a group of atoms in a molecule with distinctive chemical properties,…

Q: Which of the following is not a branched-chain amino acid? A. Valine B. Isoleucine C. Leucine D.…

A: Amino acids can be classified into aliphatic, aromatic, sulphur containing, polar, non polar and…

Q: The amino acid that does not contain a cyclic ring. a. proline b. threonine c. tyrosine

A: All proteins or peptides present in the cell are composed of twenty standard amino acids. Each amino…

Q: A nonpolar neutral amino acid is most likely to have its zwitterionic form at a pH of: Select one:…

A: The correct option is b. 6.48

Q: Which amino acid is the simplest with an H atom as the R-group? serine glycine proline tyrosine

A: Glycine is an amino acid that has a solitary hydrogen atom as its side chain. It is the least…

Q: Which of the following nitrogenous bases is found in RNA but not in DNA?   A. Thymine   B. Cytosine…

A: For a molecule to act as a genetic material, two nucleic acids, i.e. RNA and DNA are in race, to act…

Q: Which of the following biomolecules contain nitrogen?(a) Glycogen (Chapter 22)(b) Nitric oxide…

A: Biomolecules are organic compounds, which serve several functions and maintains the body.

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: 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: In protein synthesis, adenine pairs with ________________________, and guanine pairs with…

A: DNA alone cannot account for expression of genes. RNA is needed to help carry out the instruction in…

Q: What kind of biological function would each of the following proteins perform?(a) Human growth…

A: Proteins is a macronutrient that is essential to building muscle mass. it is commonly found in…

Q: Which of the following nitrogen-containing rings are found only in RNA? One or more answers.…

A: RNA (Ribonucleic acid) is a single-stranded biological macromolecule and plays a major role in…

Q: Which of these amino acids could be found in the transmembrane portion of a protein? a)…

A: Proteins are one of the major macromolecule in the living organisms. They have many structural and…

Q: Which of the following is the primary driving force for protein folding? disulfide bridges internal…

A: Protein folding is the mechanism by which a polypeptide chain folds in its native 3D form to create…

Q: Each protein monomer is made up of four parts bound to a central carbon. List the 4 parts by name

A: Biomolecules are organic compounds found in living organisms. All living organisms will have these…

Q: Which of the following pairs of amino acids stabilizes a fold in a polypeptide chain through ionic…

A: Proteins are composed of a linear chain of amino acid sequences attached via peptide bonds. Proteins…

Q: Which of the following fusion of molecules establishes the backbone of an amino acid? 1. An alpha…

A: Amino Acids are monomers of long protein chains. Two amino acids are connected by the peptide bonds…

Q: List the name of two amino acids that belong to each of these type of amino acids: Nonpolar…

A: Nonpolar (hydrophobic): As these amino acids do not have polarity at their ends makes them away from…

Q: The molecular structure shown here represents which lipid component? monounsaturated fatty acid…

A: Ans.18  correct option is  C (monounsturated fatty acid) The correct answer is monounsaturated fatty…

Q: Which one of the following is an example of essential amino acid? Leucine Aspartic acid Arginine…

A: To make a protein, amino acids form a specific type of covalent bond with one another. As a result,…

Q: the linear sequence of amino acids in a polypeptide chain is referred to as a proteins _________…

A: Protein is a complex molecular structure. It is greatly responsible for the majority of the…

Q: Denaturation is the loss of protein function from structuralchange or chemical reaction. At what…

A: Proteins have different levels of organization, which, when combined, give the functional protein.…

Q: Which of the following is NOT found in RNA? A. thymine B. adenine C. uracil  D. cytosine  E.…

A: Introduction :- Ribonucleic acid (RNA) is a nucleic acid that has structural similarities to DNA and…

Q: Which of the following amino acids have a side chain that is capable of acting as a nucleophile? A.…

A: Amino acids are biomolecules made up of two functional groups; amino group (-NH2) and carboxyl group…

Q: The tendency for an amino acid side-chain group such as -COOH to release a proton (pK) is the equal…

A: A polypeptide chain can be defined or described as a series of amino acids bonded mainly with help…

Q: Which of the following amino acids has a net charge of +2 at a low pH? Which has a net charge of -2…

A: Amino acids are biological molecules that have both amino as well as carboxylic group in its…

Q: Which of the following structural features are involved in the formation of a peptide bond? amino…

A: A polypeptide chain is a polymer of naturally occurring amino acids that are linked together by a…

Q: Which of the following pair of amino acids has polar but neutral side chains? cysteine and…

A: Since there are multiple questions and they are not interlinked, as per our company guidelines only…

Q: The order and sequence of amino acids in a polypeptide determines what protein structure

A: The macro-molecules are basic building blocks of the body. Carbohydrates, proteins, fats and nucleic…

Q: Which of the following amino acid residues cannot act as a nucleophile? a. Serine b. Glutamate C.…

A: Amino acids are the building blocks of proteins. They have side chain R groups that are important…

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: An amino acid whose side chain can behave as hydrogen bond donor is O a. Ala O b. Ser O c. Phe O d.…

A: Introduction: The monomers that build proteins are found to be amino acids. They form peptides…

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.