A buffer system consists of A. a weak acid and its conjugate base. B. a weak acid and a proton donor. C. a weak acid and a proton. D. a weak base and a proton acceptor.

Q: Explain how a phosphate buffer neutralizes added acid and base in a biological system

A: There are four buffer systems in the biological system to maintain the homeostasis, they are 1.…

Q: Hydroxyl ion (OH) is a type of the following: O a Acid O b. Base OC Buffer Od. Salt Oe. None of the…

A: According to Lewis concept Acids the those substances which can accept electrons while bases are…

Q: Which of these decapeptide is the most hydrophobic?

A: 1)Answer is option 1"3". It has total of 7 hydrophobic amino acids which are…

Q: 2. You made a pH=9.8 buffer solution by mixing NaOH and glycine to give a solution that is 0.20 M in…

A: In order to solve (d), first we need to calculate (c). So, here is a brief and comprehensive…

Q: Compounds having an affi nity for water are said to bea. cohesive. c. hydrophobic.b. hydrophilic. d.…

A: b) hydrophilic

Q: The Bohr effect refers to:     a. the decrease in affinity of Hb for O2 when the pH goes down b.…

A: The hemoglobin has an affinity towards oxygen which makes it capable to carry oxygen throughout the…

Q: Which of the following agents can change the shape of a protein? Check all that apply. A.…

A: Protein is a polymer formed from amino acid joined by peptide bond. There are twenty standard amino…

Q: The following is produced from the addition of an acid and a base: O a. Acid O b. Base O c. Buffer O…

A: Introduction  A chemical interaction between an acid and a base is known as an acid-base reaction.…

Q: Hydrogen bonding between water molecules results in a. submersion. b. adhesion. c.…

A: Introduction: Water molecule is composed of two hydrogen atoms and one oxygen atom. The two hydrogen…

Q: two of these statements are truths and one is a lie. Which of the following statements is a lie? a.…

A: pH is negative log of H+. pH is a scale used to specify the acidity or basicity of an aqueous…

Q: An RNA nucleotide differs from a DNA molecule in that RNA hasa. a ribose sugar.b. a uracil base.c. a…

A: Macromolecules are very large molecules commonly composed of the polymerization of smaller subunits…

Q: Molecules in a fluid diffuse over time because A. they are pumped toward areas of higher…

A: Need to find why molecules in a fluid diffuse over time from the four given options.

Q: Which of the following chromatographic techniques has an attached ligand on the stationary phase?…

A: Chromatography is a laboratory technique that is used to separate components, or solutes, of a…

Q: Identify which of the following molecules yields uric acid when degraded: a. DNA b. FAD c. CTP d.…

A: Uric acid is a heterocyclic compound of carbon, nitrogen, oxygen, and hydrogen with the formula…

Q: The amount of energy needed to raise one gram of water one degree Celsius is calleda. a calorie. b.…

A: BASIC INFORMATION ABOUT ENERGY CURRENCY OF THE BODY  ATP  It stands for Adenosine Tri - phosphate.…

Q: conjugate base of the weak acid, CH3COOH in an acid b ace action?

A:

Q: The ability of non-polar substances like fat molecules to clump together in water thereby allowing…

A: Fats are non-polar molecules and generally insoluble in water. Non-polar molecules can not make…

Q: You can elute the bound proteins from the Diethylaminoethyl (DEAE) sepharose column by A. increasing…

A: Diethylaminoethyl  (DEAE) sepharose is a positively charged resin used in ion-exchange…

Q: A pH of 3 is a. basic b. neutral c. acidicd. a buffer

A: Introduction pH plays and important role in determining the concentration of H+ ions in the…

Q: Can you explain the various options and how did you come to the answer? How to determine when…

A: Weak acids are the acids that do not completely dissociate into their constituent ions when…

Q: The Bohr effect refers to the decrease in affinity of Hb for 02 when the pH goes up. OA. the…

A: Bohr's effect shows when there is an increase in partial pressure of CO2 (PCO2), it shifts the O2…

Q: In what prosthetic group the following belongs: Insulin Enkephalin Glutathione Albumin Collagen…

A:

Q: Which of the following statements is TRUE? A. Water and electrolytes move across the cell membranes…

A:

Q: Buffers a. can be acids, not bases. b. keep the pH constant. c. are monomers of a polymer. d. are…

A: Buffers are solutions that are able to neutralize small amounts of acid or base that are added to…

Q: Which of the following O The capacity of a buffer increases with increasing (Acid) and (Base) Ohe pH…

A: An acid is a chemical substance that donates a proton or hydrogen ion (H+) to another substance or…

Q: At neutral pH (pH = 7):   a. acidic amino acids have a net positive charge   b. basic amino acids…

A: Net charge of an amino acid is determined based on the PH of the medium and pKa of the amino group,…

Q: Clear water is a type of the following: O a. Solvent O b. Solute Oc. Solution O d. A and C Oe. All…

A: The branch of science that deals with the biochemical reactions that is occurring within a living…

Q: 16) What is true about pH? a. acids are a pH less than 7 b. bases are a pH greater than 7 c. water…

A: Acids are those substances which are sour in taste. They can donate proton ions in solution. Based…

Q: Which of the following describes a buffer?   A. The measure of the amount of hydrogen ions in a…

A: A solution is said to be a homogeneous mixture of two or more components in any one phase(solid,…

Q: placed in an unknown solution. Micrographs were taken at the start of the experiment and a two…

A: Given information: RBCs are placed in unknown solution Micrographs are taken before the experiment…

Q: Biochemists use a modified value for standard ΔG values because A. the reagents are not one molar…

A: The concept of Gibbs free energy (ΔG) plays a vital role in understanding the thermodynamics of…

Q: Both water and the cytosol of cells are hydrophilic. Select one: a. True b. False

A: Hydrophobic molecules  Molecules that do not dissolve in water. Repel water molecules. Non-polar…

Q: Binding additives are polysaccharides that have functions of: A. Encapsulating and aerating B.…

A: Food is made up of carbohydrates, fats, proteins, vitamins, minerals, water, and a range of other…

Q: HCI is a type of the following: O a. Acid O b. Base O c. Buffer O d. Salt Oe. None of the Above

A: HCL  is corrosive in nature. It is clear colourless, pungent solution of hydrogen and chlorine mixed…

Q: . A substance capable of dissolving freely inwater isa. hydrophilic.b. hydrophobic.c. hydrolyzed.d.…

A: Water is a universal solvent as it can dissolve most substances. It is polar in nature and dissolves…

Q: A conjugate acid-base paira. acts as a buffer.b. can combine with H+ in a solution.c. can release H+…

A: A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate…

Q: Use both diagrams AND full sentences to describe/explain what will happen in each of the following…

A: An isotonic solution has the same solute concentration as the fluid inside a cell. A hypotonic…

Q: Give one physiological c

A: pH is the measure of the strength of H+ ion or Hydronium ions in solution. pOH is the…

Q: Compare the values below. Which is greater, or are the two values equal? A. Solubility of uric acid…

A: Ammonia and uric acid are form of nitrogenous waste that gets eliminated out from the body by…

Q: Write equations showing how each weak base ionizes water to form OH-. Also write the corresponding…

A: A chemical basic substance that does not dissociate completely when dissolved in water is referred…