1. Why do proteins become polycations at extremely low pH and become polyanions at very high pH? 2. Explain why hydrogen bonding is important to protein structure.

Q: 8. Which of the following members of the ETC does not pump any protons into the intermembrane space?…

A: Electron Transport Chain (ETC). This component of aerobic respiration and the only component of…

Q: What is the product of the oxidation of this fatty acid?

A: Fatty acids are carboxylic acids with a hydrocarbon chain ranging from 4 carbon to 36 carbons.…

Q: Which of the following would you expect to happen if amino acids 579 to 582 (YIYV) in the PDGF-Beta…

A: PGDF beta-receptor contain multiple domains that activate the various pathways inside the cell. The…

Q: Which is the strongest non-covalent interaction that occurs between triglycerides: hydrogen bonds,…

A: - A non-covalent bond is one in which there is no sharing of electron pairs. It mainly occurs…

Q: 1. What is the sequence of the heptapeptide produced upon treatment with trypsin? Fill each blank…

A: Specific enzymes have specific cleavage point in amino acids. Chymotrypsin is serine…

Q: 1. What two enzymes in glycolysis are regulated by high ATP concentrations?

A: INTRODUCTION : Glycolysis : It is a metabolic pathway in which glucose is breaken down into pyruvate…

Q: Discuss the role of carbohydrates on cancer and suggest an appropriate treatment

A: Carbohydrates are biomolecules, which are the primary source of energy for the body. All of the…

Q: The majority of water and electrolytes are absorbed in which segment in the gastrointestinal tract?

A: The large intestine.

Q: Which is an appropriate statement of involvement of the hydrophobic effect in protein folding? A)…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: How many moles of ATP and GTP will be in use for this polypeptide chain synthesis? What…

A: As per the central dogma of molecular biology, the genetic information stored in the DNA is copied…

Q: 10. Can any of the sidechains of the amino acids in oxytocin participate in forming ionic bonds?…

A: Oxytocin is a peptide hormone, composed of 9 amino acids with amino acid sequence CYIQNCPLG. It is…

Q: hat is an ONPG test? WHat is he principle behind this assay.

A: Fermentation of lactose happens by bacteria which depends on two enzymes - permease (allows lactose…

Q: The side chain of cysteine contains: OA) a hydroxyl group OB) an amine group C) a carboxyl group OD)…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: Procedure 1. Place 2mL of milk in each of the 3 test tubes. 2. Heat one of the test tubes to boiling…

A: Test tube 1 contains once boiled (then cooled) milk , formaldehyde and methylene blue . Test tube 2…

Q: Calculate ΔGinward. Is energy required for transport to happen? The internal pH of a lysosome= 4.0…

A: The amount of change in free energy  i.e. change in Gibbs free energy for the transport of an ion…

Q: 1. How does the resin facilitate purification in glutathione S-tranferase (GST) affinity?   2.…

A: In Biochemistry, affinity chromatography is a technique used for the purification of protein based…

Q: 1. State if true or false a. Gluconeogenesis is the exact opposite of the glycolytic pathway b.…

A: Note: Hi! Thank you for the question. We are authorized to answer three subparts at a time. Since…

Q: Algae are being studied as a source of lipids to be used as source of biodiesel as a liquid fuel.…

A: Given that algae uses H2O, NH3, CO2 in the presence of light to produce a compound CH1.8O0.5N0.2 and…

Q: What is the total yield of NADH, FADH2, and acetyl-CoA from the complete oxidation of myristate?…

A: Myristic acid is a fatty acid with 14 carbon atoms. Beta-oxidation is the oxidation of fatty acid on…

Q: 1. You were asked to prepare 1.0 L of a 0.10 M solution of sulfuric acid from a 3.0 M solution of…

A: Solutions of different concentrations of salts and acids need to be prepared for routine laboratory…

Q: The overall process of glycolysis converts a C6 molecule into: O A different C6 molecule O Three C2…

A: Glycolysis is the catabolic pathway and is the first step of cellular respiration that takes place…

Q: What are the roles of the other enzymes involved in replication and why they're necessary ?

A: Before cells divide, DNA replication must occur. DNA replication is the complete, faithful copying…

Q: Which of the following statements is CORRECT? A) Hexokinase IV is allosterically inhibited by…

A: Enzyme plays an important role in all the metabolic activities in our body. They themselves remain…

Q: AMP is an activator of fructose 1,6-bisphosphatase (FBPase-1) True False

A: Glycolysis is the process by which one molecule of 6 carbon glucose is broken down into 2 molecules…

Q: The side chain of asparagine contains: OA) a hydroxyl group OB) an amine group OC) a carboxyl group…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: How to draw titration of amino acids ？what happen when ph increase from low to high？ 1. what does it…

A: Amino acids are biomolecules that have an amino group and a carboxyl group linked to the same carbon…

Q: In an Absorptive (fed) state Which predominates? Anabolic or catabolic processes? Which ones…

A: Metabolic pathways are a series of process which includes chemical reactions occurring in a cell.…

Q: Please answer fast draw pyruvate carboxylase mechanism. cofsctors must include. label all…

A: Pyruvate carboxylase is an enzyme which catalyzes the conversion of pyruvate to carboxylase.…

Q: discuss the biochemistry behind disorders related to aromatic amino acids with an aid of an…

A: The major aromatic amino acids are phenylalanine, tyrosine, and tryptophan. Defect in the enzymes of…

Q: What are the extinction coefficient of Myoglobin (Equine) at 280 nm and 410 nm respectively?

A: Myoglobin is a conjugated protein that contains heme conjugated to globin chain. Myoglobin contains…

Q: In the peptide, SWEETLY, bond via its side chain. can still form a standard peptide bond while can…

A: A standard peptide bond is formed as a result of a dehydration ( also called condensation ) reaction…

Q: The following are importance of carbohydrates EXCEPT: O carbohydrates are non-polar molecules O…

A: Carbohydrates are polyhydroxy aldehydes or ketones.  Depending on their size, they can be…

Q: discuss the biochemistry behind disorders related to aromatic amino acids with the aid of an…

A: Metabolic disorders are caused due to abnormalities in one or more processes in a metabolic pathway.…

Q: A peptide has the following amino acid composition: 2 Met, 2 Phe, 2 Glu, 1 Arg, 1 Lys, 1 Val, 1 Leu,…

A: Recall that: Amino acid sequences are written with N-terminal amino acid on the left and C-terminal…

Q: Which of the amino acids does NOT have an aliphatic side chain?   a.   Lysine   b. Alanine…

A: R groups in aliphatics are nonpolar and hydrophobic. The hydrocarbon chain's hydrophobicity rises as…

Q: Question 20 of 25 The figure below illustrates what reactions of amino acids? coo C=0 CH₂ CH₂ =0 00…

A: Amino acids are the building blocks of proteins. they exhibit different physical and chemical…

Q: Biochemical events in the synthesis of ATP: I. Subunits of ATP synthase chages in conformation and…

A: ATP synthase is a complex enzyme consists of an F0 and F1 components. It uses the proton motive…

Q: Calculate the pI for the following peptide: Phe-Lys-Glu-Asp-Lys-Ser-Ala (note: there is only one…

A: Amino acid sequences are written with N-terminal amino acid on the left and C-terminal amino acid on…

Q: what element is this? after MDA reacts with something Ph CH3 N CH3

A: MDA is malondialdehyde . It is a product of lipid peroxidation in corals. Determination of this MDA…

Q: Compare and contrast the principle behind DNA migration in agarose gel electrophoresis from that of…

A: Electrophoresis is a technique that involves the migration of charged molecules under the influence…

Q: Which of the following proteins can BEST serve as a marker to detect the presence of the chloroplast…

A: The presence of biological or molecular markers provides information regarding their source.…

Q: Events that occur in the peroxisomes incluce the following EXCEPT     oxidation of fatty acids…

A: Peroxisomes are small, membrane-bound organelles in eukaryotic cells that contain enzymes involved…

Q: Count Experiment Name: Specimen Name: Tube Name: Record Date: SOP GUID Display Range Population P1…

A: The flow cytometry data in the given image uses BV-605 as the fluorescent molecule. From the…

Q: Which one of the following features does NOT make HDL a 'good' lipoprotein. It acts as an…

A: High density lipoprotein is the smallest lipoprotein with a size of 5 to 17 nm. It functions to…

Q: is device used to measure temperature.

A: The device used to measure temperature is .........

Q: Why does the Asp-His ion pair contribute more energy at pH 6.0 than at low or high pH? At pH 10.0,…

A: pKa is the pH at which a weak acid is 50% dissociated into proton and conjugate base. At pH below…

Q: The pKa of the Histidine side chain is 6.0. When Histidine is dissolved in a buffer with pH 5.0, the…

A: A molecule's level of acidity is indicated by the pKa value. A proton's grip on a Bronsted acid is…

Q: The side chain of which residue can be hydrogen bond donor:   a. Thr b. Ala c. Ile d. Pro e.…

A: There are twenty standard amino acids that makeup all the proteins present in our body. These twenty…

Q: The figure below illustrates what reactions of amino acids? coo &C=0 CH₂ CH₂ 0=( 00 + NHⓇ NAD(P)H+H…

A: The amino group, carboxyl groups, and side chains of amino acids all play a role in how amino acids…

Q: What's the importances of Nucleic acid

A: - The most crucial macromolecules for maintaining life are nucleic acids. They contain instructions…