Question 29 The structure of D-galactose differs from that of D-talose at which carbon atom? carbon #3 carbon #4 carbon #2 carbon #5
Q: Question 18 The peptide whose sequence is SYKEG: A is globally charged 0 at pH 1. B is globally…
A: The peptides are a primary sequence of amino acids that are attached through peptide bonds during…
Q: Question 16 Which of the following statements is NOT true regarding the comparison of the…
A: Answer - option C.Each is stabilized by inter chain hydrogen bonds.
Q: Question 4 The RNA molecules are said to be less stable than DNA molecules because aside from the…
A: Sol: There are two types of nucleic acid molecules 1. DNA (Deoxyribonucleic acid) and 2. RNA…
Q: Question 5 In cholesterol, to which ring of the steroid system is the hydroxyl group attached? B A.
A: Cell membrane is made up of lipid bilayer. The composition of different types of lipids has very…
Q: Question 11 Four these are related. Select the exception. amino group O carboxyl group R group (side…
A: Proteins are the important biomacromolecule of the body. They are also known as building blocks of…
Q: Question 8 The major structural component of the exoskeletons of invertebrates is composed of…
A: The monosaccharides joints together to form polysaccharides. Different polysaccharides are present…
Q: Question 24 The following statements best describe the RNA structure and/or function except A The…
A: RNA or ribonucleic acid composed of ribose sugar. The basic unit of RNA is the nucleotide.
Q: QUESTION 10 n polynucleotides, the phosphodiester bond is between the O 3' OH from the 3' end, and…
A: A nucleic acid is a polymer of a nucleotide monomer referred to as polynucleotide. DNA as ( base-…
Q: QUESTION 10 structures. Disulfide bridges can be formed by and helps in stabilizing O Cysteine;…
A: Proteins are complex biological macromolecules that are the polymers of amino acids. Scientists…
Q: Question 5 The highest level of protein structure represented here is quaternary O primary O…
A: Proteins are polymers of amino acids. There are four levels of protein structure - Primary…
Q: Question 17 Which of the following are true regarding proteins? Select all that apply. O the amino…
A: 2,3,6. Mild increase in temperature usually increases or maybe doubles the function of enzymes but…
Q: Question #33 Some alpha helices span the length of a lipid bilayer membranes that are roughly 5.4 nm…
A: Alpha helix is a common motif present in the secondary structure of proteins and each backbone of…
Q: QUESTION 10 1. Which of the following sugars have B (1-4) glycosidic linkages? (1) The hereto…
A: β-1,4 glycosidic bond is formed by formation of covalent bonding of oxygen to the C1 of one glucose…
Q: QUESTION 7 The monosaccharides shown below are H. HO H -HO- HO H H- HO H но HO- HO- CH,OH CH,OH O…
A: Isomers are molecules with the same molecular formula, but different arrangement of atoms. Isomers…
Q: QUESTION 3 Imagine that a proline is present at position 4 in an alpha helical structure, the number…
A: The α-helix is a rigid, rod like structure that forms when a polypeptide chain twists into a helical…
Q: Question 1 and are glycosamines lĩnked to three-carbon acids at the C-1 or C-3 positions, and…
A: Introduction: A cell wall is the non-living component that protects the cell's outer layer. It has a…
Q: Question 6 What kinds of bonds do lipase break in order to release fatty acids from…
A: Lipids are hydrocarbons that are made up of carbon and hydrogen mainly. As they are hydrocarbons, so…
Q: Question 13 About the protein structure: |A The primary structure of a protein corre- sponds to its…
A: Introduction: The composition of amino acid of a protein define its physical and chemical…
Q: Question 26 The removal of a phosphate from cytidine yields the cytosine base. A True B) False
A: DNA consists of deoxyribonucleotide sub units. It is the genetic material in the cell.
Q: QUESTION 25 In the serine protease catalytic mechanism, which of the following helps stabilize the…
A: Serine proteases (or serine endopeptidases) can be defined as the class of enzymes which functions…
Q: QUESTION 21 Which of the following describes an enzyme with only the amino acids present, without…
A: Enzymes are biocatalysts and they catalyze the biochemical reactions both in vivo as well as in…
Q: Question 12 What is the net charge of peptide Ala-Gly-Lys-Tyr at a pH of 1.0? O a. 0 Ob. +2 O C. -1…
A: Peptides are the chain of few amino acids joined by the peptide bond. Two amino acids are linked…
Q: QUESTION 5 Amino acid monomers are grouped into three categories based on their "R" group around the…
A: Amino acids are molecules that combine to form proteins. Amino acids are building blocks of life.
Q: QUESTION 22 Which of the following statements about protein structure is correct? O The information…
A: Amino acids are compounds containing carbon, hydrogen, oxygen and nitrogen. They serve as monomers…
Q: Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the…
A: Peptidyl transferase is an enzyme that work for the addition of amino acid residue to grow…
Q: Question 40 The sugar-phosphate backbone is located on the outside of the molecule with the 2 sets…
A: The presence of sugar molecule and phosphate group with nucleobase are called nucleotide.
Q: QUESTION 3 In DNA, one strand of nucleotides is held together with bonds while the two strands are…
A: DNA is a double helical structure which is held together by two types of bonds: covalent and…
Q: Question 7 The uncoupling agent 2,4-dinitrophenol (DNP) has a pk, of about 7.2. Which of the…
A: Uncouplers are the compounds that interact with electron transport chain and inner mitochondrial…
Q: QUESTION 5 Which arrow(s) in the polypeptide shown point to peptide bond(s) below? А. В. С. D.…
A: A peptide bond is a bond that joins two amino acids together. The bond is formed when the carboxyl…
Q: QUESTION 4 Depolymerization of disaccharides into two monosaccharides involves alan reaction.…
A: Disaccharides are the Carbohydrates that are made up of two monosacharide units joined together by…
Q: QUESTION 22 Which of the following is NOT a difference with the twenty standard R-groups of amino…
A: 21. Amino acids are classified based on the "R" group (side chain). Amino acids have both amine and…
Q: QUESTION 20 How many amino acid side chains in this peptide are capable of absorbing light at 280nm?…
A: Aromatic amino acids such as tryptophan, tyrosine and phenylalanine absorb UV light. Aromatic…
Q: QUESTION 14 Which of the following polysccharides have b (14) glycosidic linkages? (1) The…
A: Cellulose and chitin are two significant polymers found in nature. A polysaccharide called cellulose…
Q: QUESTION 21 21. Acid hydrolysis of esters produces and
A: In acid, hydrolysis water is involved in the cleavage of a chemical bond of ester.
Q: QUESTION 23 Which physical characteristic is not commonly used in protein separation? OA.…
A: As per the guidlines we are supposed to answer only first question posted in case of multiple…
Q: QUESTION 2 The 8th amino acid (assuming its not a proline) in an alpha helix chain will form H-bond…
A: α helix is a secondary conformation of proteins. The amino acids which are joined together through…
Q: QUESTION 1 The structure of an amino acid at pH 7 is shown below. This amino acid is most likely…
A: An amino acid's structure allows it to function as both an acid and a base. Because nearly all amino…
Q: Question 27 ( Which of the following is true of all amino acids? One single codon codes for each…
A: Amino acids are the building blocks for the proteins responsible for the biological functions within…
Q: QUESTION 29 The major characteristic of amino acids in positions a, d, a' or d' in coiled coils is…
A: A coiled-coil can be defined as the structural motif found in proteins in which 2-7 alpha-helices…
Q: Question No.1 (1) A positive Tollen’s test classifies a monosaccharide as a reducing sugar. (2) The…
A: Carbohydrates are considered as the energy fuel for the body, which breaks down and enters into the…
Q: GENETICS - help me please
A: Statement 2 "The sequence of amino acid in a polypeptide is specified by ribosomal RNA" is false.…
Q: QUESTION 9 Allosteric enzymes: are regulated primarily by covalent modification. usually catalyze…
A: An enzyme is a biocatalyst that increase the rate of chemical reaction without itself being changed…
Q: Question 19 Based on the hydropathic index plot below, where in the 3D structure of the protein…
A: To study hydropathy index, we should first note down the following points: Integral proteins are…
Q: Question 21 Among the following families of compounds, only one is never cyclic: A Aldohexoses B…
A: Sugars with 3 carbons called triose, with 4 carbons tetrose, with 5 carbons pentose and 6 carbons…
Q: Question 10 Which of the following statements is incorrect? O In delta notation of fatty acid…
A: Q. Which of the following statements is incorrect? 1.In delta notation of fatty acid…
Q: QUESTION 4 Which of the following amino acids is not positively charged at pH 7? O Lysine O Arginine…
A: An amino group and an acid group are present in organic molecules called amino acids. Amino…
Q: QUESTION 13 Which amino acid below would represent a favorable gain in enthalpy when interacting…
A: Enthalpy ( H) is the measure of heat evolved or consumed during biochemical interactions.…
Q: QUESTION 1 The reaction initiating depolymerization of glycogen is: (n is the number of monomers in…
A: Carbohydrates are one of the major macromolecules needed for the growth and development of the…
Q: QUESTION 37 Which of the following amino acid residues form hydrogen bonds with Ala residues located…
A: The alpha-helix is a rigid, rod like structure that forms due to the helical conformation of the…
Q: Question 24 Which of the following is correct regarding nucleotide structure? Removal of the…
A: Answer - option B.
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- aming System (Academic) on 15 What is the correct way to write the scientific name for humans? red Select one: d out of O a. Homo sapiens O b. Homo Sapiens question O c. Homo sapiens O d. none of the answers are correct O e. homo sapiens n 16 Upon the cleavage (breakdown) of two different macromolecule, 4 individual monosaccharide molecules are produced, 2 with ketone functionality, and 2 with aldehyde functionality. ed Based on this data, what is the identity of the two unknowns? out of Select one: question O a. Sucrose, sucrose O b. Lactose, lactose O c. Maltose, maltose O d. Lactose, sucrose O e. Lactose, maltoseQUESTION6 What is the relationship of the following two structures? HỌ HO HO OH HO OH enantiomers diastereomers constitutional isomers identicalQUESTION S Amino acid monomers are grouped into three categories based on their "R" group around the alpha carbon. Which pairing most accurately depicts the reason for the "R" group category? O Polar uncharged R group amino acids have functional groups that are strongly electronegative. O Non polar R group amino acids have hydrocarbon functional groups such as methane. O Polar charged R group amino acids have functional carboxyl and amino functional groups
- Question 3 What will be the complete hydrolysis products of the given structure below? CH₂-O-C-C17H37 HC-O-C-C₁7H29 ő H₂d. 2C_0_0_CH₂CH₂N² CH₂) 3 d O yield 1 mole of fatty acid, glycerol, phosphoric acid & choline upon hydrolysis O yield 2 moles of fatty acid and 1 mole of glycerol, phosphoric acid & choline upon hydrolysis O yield 2 moles of fatty acid and 1 mole of sphingosine, phosphoric acid & choline upon hydrolysis O yield 1 mole of fatty acid, sphingosine, phosphoric acid & choline upon hydrolysisQuestion three parts g though h g. Which of the following disaccharides below is NOT reducing sugar? D. HO. O HO он но. OH OH OH OH HO HO но HO. OH OH OH OH OH HO HO. HO. OH но OH он он HO O h. True/False - The only chemical difference between starch and cellulose is the stereochemistry of the glycosidic linkage. More precisely, the stereochemistry at the C-1 anomeric carbon linkage.Question: Identify 1°,2° or 3° amines in following biologically important organic compounds. 1) H2N-CH2CH2CH2CH2CH2-NH2 (cadaverine) ОН `CH3 HO ОН 2) (Adrenaline-Nervous system stimulant) NH2 НО OH 3) (Dopamine - Neurotransmitter) CH,O. CN-CH3 4) HO (Codeine – Cough suppressant) 6. CHEL 114 – Session 11 - Lab Report sheet Khan, Rajpara, Heidary - 8/2020
- Question questions. A) Compare and contrast triglycerides in fat and oils? Draw an example of each B) Examine the isomers below. What makes them isomers of each other? Draw the disaccharide that can be made by linking these sugars and determine the type of glycosidic bond they will make? I 4 C HO 6 CH₂OH 5 C -H Н ОН НО Answer the following 3 H H α-Mannose LIFE: THE SCIENCE OF BIOLOGY 12e, In-Text Art, Ch. 3, p. 46 ©2020 Oxford University Press H COH 2 C1 4C OH C -I CH₂OH H 5 I OH 3 -O H-C 2 H a-Galactose OH I C1 OH10-20. Find the pH and the concentration of each species of lysine in a solution of 0.010 0 M lysine ·HCI, lysine monohydrochloride. The notation "lysine ·HCl" refers to a neutral lysine molecule that has taken on one extra proton by addition of one mole of HCl. A more meaningful notation shows the salt (lysineH†)(Cl ) formed in the reaction.CHO HO -H- но H- Consider the structure of tallose and answer the questions that follow. но OH CH,OH aldose 1. What type of monosaccharide is tallose? 2. What is the configuration of tallose? D-sugar 4 3. How many chiral carbons does tallose have? 16 4. What is the maximum number of stereoisomers can tallose have?
- NUCLEIC ACID "BASE PAIRING" 1. 5'-A-T-A-A-G-G-G-G-C-T-C-3' 2. 5'-G-G-G-G-C-T-A-C-T-C-3'N H N-H ZI H Saquinavir N H H 1. Identify any single bonds in saquinavir that have restricted rotation and are thus not counted towards the number of rotatable bonds identified for Veber's parametersUnanswered Sa polysaccharides 1 Why are humans not able to digest cellulose? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. al Humans do not possess the enzyme necessary to hydrolyze the 1-4-B-glycoside linkages found in cellulose. Humans cannot digest glucose. Humans do not possess the enzyme necessary to unwind the helical shape of the cellulose molecule. P. Humans do not possess the enzyme necessary to oxidize OH groups in cellulose. Unanswered physical preperties 2
