Which of the following amino acids has more than one chiral center? Thr lle Leu both A and B both B and C
Q: * Proteins contain .11 (C) D,L-Amino acids O (D) Both (A) and (B (A) Only L- a- amino acids O (B)…
A: Proteins are made of amino acids. An amino acid contains an amino group, a carboxyl group, a…
Q: Gd(III) needs to be strongly chelated when used in medical imaging applications because the free ion…
A: Gadolinium (Gd) is a silvery white metal. Gd (III) is useful in medical imaging purposes, in NMR…
Q: What is the net charge of the following amino acids (A, B, C, D) at pH 5.96 ? Amino acid Isoelectric…
A: Isoelectric point is pH of an amino acid at which they are in their zwitter ion form i.e, the…
Q: Describe the basic structure of an amino acid. State which part of the amino acid makes it unique.
A: Amino acids are the organic molecules which makes the building blocks for the proteins . Amino acids…
Q: Which of the following is achiral amino acid co0e cooe H,N-C-H CH3 H,N-C-H HO CH, OH CH3 HO HN NH2…
A: Amino acids are monomeric units that are joined together by peptide bond to produce the growing…
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 of the following amino acids belaw is not likely to be found in nature? NH NH HS
A: Amino acids are monomer units of proteins. They are organic molecules with certain functional…
Q: What type of intermolecular forces exist between the side chains of each of the following pairs of…
A: Amino acids are organic compounds that combine to form proteins. Amino acids and proteins are the…
Q: Which of the following factors is responsible for the denaturation of proteins? * Oa) Heat Ob)…
A: In the process of denaturation, the protein losses its native state. This occurs because of the…
Q: All of the following molecules are branched-chain amino acids EXCEPT 2 points H H TH C. H I H. HH H.…
A: Introduction: The correct choice is molecule C
Q: Cysteine is the amino acid that participates in disulfide bonds in proteins. True or false?
A: The statement is true. Cysteine is an amino acid that is involved in formation of disulfide bonds…
Q: Which of the following statements concerning the D- and L- forms of a monosaccharide is incorrect? O…
A: Sterioisomers are recognised by L and D forms in monosaccharides. The D form is dextrorotatory…
Q: Steroids are classified as sinple lipids. True or false. Explain
A: Lipids are those substances that are found to be insoluble in water and are a crucial component of…
Q: Which of the following ketoses contain the same number of carbons as glucose? Select one: a. Aldose…
A: A ketose is a ketone with two or more hydroxyl groups where at least one of the hydroxyl groups at…
Q: Why double bonds of fatty acids in our body are generally in cis for?
A: When hydrogens are present in the same plane, it is known as a cis fat. When the hydrogen atoms are…
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: Which of the following is the distinguishing characteristic between fats and oils? O A. Identity of…
A: Given here are some statements regarding fats and oils and following is the distinguishing…
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 of the following represents a proper designation for monounsaturated fatty acid ? O 18:0 O…
A: Saturated fatty acids have no double bonds in the chain. Their general formula is CH3-(CH₂)-COOH…
Q: Which of the following is incorrect about the peptide Val-Leu-Ala-Ser-Gly? It has a net charge of…
A: H3+N-Val-Leu-Ala-Ser-Gly-COO- a) We have 1 positive charge at the N-terminal and one negative charge…
Q: Two functional groups that are present in all amino acids are the group and the group. carboxyl;…
A: Amino acids are the structural units that make up the proteins and are linked through formation of…
Q: Amino acids are different from each other by: Oa. The presence of a central alpha C atom. o b. The…
A: (b) The amino acid R group
Q: Some proteins contain additional amino acids that arise by modification of an amino acid already…
A: Amino acids are organic compounds which forms the backbone of protein molecules. Based on it's…
Q: Which of the following is a polysaccharide composed exclusively of alpha-D-glucose? O Cellulose…
A: Polysaccharides are also called as the glycans. Polysaccharides are the polymer of monosaccharide.…
Q: Protein conformation depends on the...
A: Introduction: Proteins are the polymers of L-α- amino acids used for a polypeptide containing more…
Q: what type of intermolecular forces exist between the side chains of each of the following pairs of…
A: Proteins can exist in multiple levels of structures. The highest structural level possible for a…
Q: Proteins that bind to specific carbohydrates are called pectins O oligonucleotides…
A: Answer is lectins
Q: Which linear monosaccharide below corresponds to this cyclic one? A) A B) B C) C D) D E) None…
A: Monosaccharides are the simplest and smallest unit that can not be degraded any further.…
Q: Which of the followings is not a structural polysaccharide?
A: Polysaccharides consist of hundreds or thousands of monosaccharide units. Polysaccharides are also…
Q: In a solution at physiological pH, the side chain of a polar basic amino acid bears a charge.…
A: An amino group and an acid group are present in organic molecules called amino acids. Amino…
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: Given the following decapeptide sequence, which aminoacids would you expect to be on the surface of…
A: The conformation in which a molecule is active biologically is known as native conformation. The…
Q: A peptide has the following sequence: Glu – His – Trp – Ser – Gly – Leu – Arg – Pro – Gly…
A: Amino acids are organic molecules made of carbon, hydrogen, oxygen, and nitrogen. Amino acids such…
Q: Which of the following amino acids have R groups that have hydrogen- bonding potential? Ala, Gly,…
A: Amino acids are the building blocks of protein and the classification was done based on the R-group…
Q: These lipids contain esters and undergo hydrolysis under basic conditions, EXCEPT: a. Waxes b.…
A: Many lipids are esters, which result from the chemical reaction of a carboxylic acid with an…
Q: which af the following is not branched chain amino acid ? a) Valin Isoleucine Lucine » Leysine
A: Amino acids are made up of an amine group, carboxyl group, an alkyl group as a side chain and a…
Q: What types of interactions are possible between the side chains of the polypeptide shown below?…
A: Proteins are the polymers of amino acid connected to each other by covalent peptide bond.
Q: Draw the amino acids at the following pH's. Include both the backbone and the sidechain of the amino…
A: There are 20 standard amino acids that make up all the proteins inside the cell. The amino acids are…
Q: Which of the following pairs of amino acids can form hydrogen bonds between their side-chain groups?…
A: A hydrogen bond is formed between a molecule that can act as a hydrogen bond donor and a molecule…
Q: For the chemical reaction that results in the formation of a peptide bond between two amino acids,…
A: The peptide bond is formed when the two amino acids are joined together with the release of water…
Q: Proteins are usually least soluble in water at their isoelectric points. Explain.
A: Proteins are composed of monomers, amino acids. All the amino acids have a similar backbone…
Q: The repeating peptide units in proteins is referred as
A: Proteins are complex structures which play a vital role in lot of key functions of the body. The…
Q: At pH = 7, the small peptides DE, LR and VF are separated using anion exchange chromotography, which…
A: Anion exchange chromatography is a form of ion-exchange chromatography which is used to separate…
Q: Which of the following type structure contains all the three glycosphingolipids?a) B structureb) A…
A: Glycolipids are characteristically lipids with a carbohydrate added to it, which is through a…
Q: Sphingolipids can contain of all of the following except O more than one choice O phosphate O…
A: Sphingolipids are highly bioactive compounds. They participate in the regulation of cell growth,…
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…
Q: Lipids serve as all of the following except
A: Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and…
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- An example of a monosaccharide is ________. a. fructose b. glucose c. galactose d. all of the aboveWhich of the amino acids will nearly always be found buried in the center of proteins? valineglycinelysineglutamic acidWhich of the following is not true about a-amino acids? have at least 2 pka values O negatively charged at pH = 1.0 most contain one chiral center can act as buffers
- What type of intermolecular forces exists between the side chains of each of the following pairs of amino acids? serine and threonine isoleucine and valine arginine and aspartic acid cysteine and cysteineWhich of the following is NOT a naturally-occurring amino acid?What amino acid is technically not an amino acid and which amino acid contains no chiral carbon atoms?
- Which of the following amino acids belaw is not likely to be found in nature? NH; NH HSAmino acids are the building blocks for proteins in the cell. The structures of the amino acids glutamate (or glutamic acid), glycine, and leucine are provided below in the same order from left to right. Map any chiral centers with a 1.Which of the following amino acids is not part of tetramer that is bounded to NAM and glycine? L-Glu D-Ala L-lys D-Glu L-Ala
- the sequence of amino acids in a protein is known as the secondary structure true or false?Draw the amino acids at the following pH's. Include both the backbone and the sidechain of the amino acids.When a protein folds into a quaternary structure the outside amino acids are exposed to the aqueous (water rich) environment. These amino acid R likely have what chemical properties? O The amino acid R groups are polar and hydrophilic The amino acid R groups are non-polar and hydrophobic O The amino acid R groups have hydrocarbon functional groups O The amino acid R groups have unreactive functional groups
