when preparing a buffer solution for a biological experiment, one should choose  a) a weak acid and its conjugate base that are not enzyme inhibitors b) a weak acid and its conjugate base that do not react with one another to form new products c) a weak acid whose pKa is near the required pH d) a weak acid and its conjugate base that are neither toxic nor oxidizing/reducing agents e) all of these choices

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Q: From the point of view of the molecules involved, which of the following reactions illustrates an…

A: Entropy is  basically an act of arbitrariness and absence of hierarchy of the system . Entropy can…

Q: Tony has asked you to identify an unknown solution. During one of the tests you perform your sample…

A: Biuret test: This is a test performed to identify the presence of protein in the given sample.  The…

Q: Which of the following fatty acids is most likely to be a liquid at room temperature? A) B) D) E) OA…

A:

Q: Which statement about sterols is TRUE? Question 7 options: A) The principal sterol of animal cells…

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Q: You measure Protein A and Protein B to have a Kd of 10-8 M. At what concentration of Protein B will…

A: Here we have 2 proteins, 'A' and 'B' . The reversible equilibrium between these 2 proteins is shown…

Q: Which type of interaction commonly persists even after urea is added to proteins for denaturation?…

A: Protein is a macromolecule made of amino acids. Several amino acids join together to form a…

Q: In state-space representation, the state equation is typically written in which form? - a) Matrix…

A: In state-space representation, the state equation is written in matrix form because it allows for a…

Q: Which of the following is a prosthetic group that may be found in the active site of an enzyme? a)…

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Q: Sketch the Hill plot for a system with negative cooperativity. Be sure to a) label your axes, and to…

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Q: What determines whether a solution isacidic or basic?

A: The pH value of any solution can be determined using a pH meter. pH scale is known to range from…

Q: 3. Phosphoric acid is tribasic, with pK,'s of 2.14, 6.86, and 12.4. The ionic form that predominates…

A: You have asked two questions . I will be answering one of the questions numbered 3 in the image…

Q: Which of the following factors is responsible for the denaturation of proteins? * Oa) Heat Ob)…

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Q: Which of the following reactions takes place by dehydration synthesis? Which of them takes place by…

A: Some polymerization reactions are accompanied with the loss of water molecules at each step. Such…

Q: For each of the following amino acids: 1) describe what the important functional group of the amino…

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Q: Depolymerization of disaccharides into two monosaccharides involves a/an _____ reaction: a)…

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Q: Which method for determining protein structure involves cleaving proteins into smaller polypeptides…

A: Protein structure refers to the three-dimensional arrangement of amino acid residues in a protein…

Q: Which of following functional groups are present on this molecule: О ОН

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Q: Indicate which of the following properties depend only on the chemical nature of its repeating…

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Q: Consider a mixture comprised of the proteins below: Protein that will most strongly bind to an…

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Q: Which of the following is true of the molecule pictured below? A) It will spontaneously form into…

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Q: Which statement is true regarding the function of a catalyst in a chemical reaction? a) A catalyst…

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Q: What is the purpose of a) SDS and b) beta-mercaptoethanol in the lysis buffer for proteins being…

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Q: a) Identify the five amino acids. b) Draw the three dissociation reactions for one of them.

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Q: Peptide bonds occur in which type of biochemical compounds? a) lipids b) carbohydrates c) proteins…

A: The correct option is (c) proteins.

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A: Introduction:-  Amino acids are the building blocks of proteins, which are essential macromolecules…

Q: The biochemical roles of lipids are A) short-term energy storage, major component of muscle, and…

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Q: The difference between cholesterol molecule and the hopanoid molecule in bacteria is that the…

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Q: An enzyme accelerates chemical reactions by all of the following, EXCEPT:   a) Bringing reactants…

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Q: 51. The OH concentration of a solution is 4.3 × 10-¹0 M. What is the pH? A) -9.37 B) 9.37 C) -4.63…

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Q: A tripeptide consisting a of three histidine residues will have charge at a pH of 7.4. A) net…

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Q: Draw Ramachandran plot for: a) regular secondary structure with Φ = 60-65 and Ψ = 60-80

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Q: Which of the following reactions would decrease the entropy within a cell?   A) anabolic reaction…

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Q: In studying a particular biomolecule (a protein, nucleic acid, carbohydrate, or lipid) in the…

A: A carbohydrate is a biomolecule consisting of carbon, hydrogen, and oxygen atoms, usually with a…

Q: 1) If the pH of the rain drops from 6 to 5 due to air pollution, the rain has become: a) two time…

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Q: Trypsin catalyzes the cleavage of: a) all peptide bonds b)  peptide bonds after Lys or Arg   c)…

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Q: 1) Nucleic acids are polymers of Select an answer and submit. For keyboard navigation, use the…

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Q: Electrolytes that release hydrogen ions in water are Group of answer choices A) bases. B)…

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Q: The 6C14 can be substituted for 6C12 in chemical reactions in a cell because it has: (It's not…

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Q: Something with a pH of 5 would be A) acidic B) alkaline C) neutral D) basic

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Q: The elution of a protein with an isoelectric point of 7.5, is mostly likely to be affected by a…

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Q: The precise biochemical activity of a protein is described ina) Phenotypic functionb) Cellular…

A: The biochemical activity of a protein is an active protein, which performs different protein…