Pka - Study guides, Class notes & Summaries

3800 Exam 3 PKAT Question and answers 100% correct 2024/2025What structure is the functional unit of the kidney? the neuron the acinus the nephron the ureter - correct answer the nephron Which two hormones are synthesized in the kidney? cortisol and epinephrine testosterone and estrogen aldosterone and cortisol erythropoietin and renin - correct answer erythropoietin and renin What is the end result of activation of the renin-angiotensin-aldosterone system? increase in blood...

Exam 1 Correct Answer- A reaction consists of a reactant "R" being converted into a product "P". The change in enthalpy of the conversion is 5 kJ/mol, while the change in entropy is 35 kJ/mol. Therefore, thermodynamic coupling is not required for this reaction to reach an equilibrium. True/False Correct Answer-True Which of the following is true regarding a reaction that has a ΔG° = 0. The concentrations of the reactants and products are equal. The reaction will eventually arriv...

If the pka of a weak acid is 2.5, at which pH will this drug become more ionized? A. pH 5 B. pH 2.5 C. pH 1.5 D. pH 1 - Answer - A. For a weak acid, a higher pH increases ionization Which equation describes the rate of drug dissolution from a tablet? A. Fick's Law B. Henderson-Hasselbalch equation C. Michaelis-Menten equation D. Noyes-Whitney equation - Answer - D. The Noyes-Whitney equation describes the rate of drug dissolution from a tablet. Fick's first law of diffusion is s...

What is a BL acid? BL base? - ANSWERAcid is a proton donor while a base is proton acceptor List the 6 strong acids - ANSWERHClO4, HCl, HBr, HI, HNO3, H2SO4 List the 6 strong bases - ANSWERLiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 What is the eq. for the dissociation of a weak acid? - ANSWERHA <=> H+ + A- Ka = ([H+][A-])/[HA] What is the eq. for base hydrolysis? - ANSWERB + H2O <=> BH+ + OH- Kb = ([BH+][OH-])/[B] What is the equation for pH and pOH? - ANSWERpH =...

ACS BIOCHEMISTRY EXAM UPDATE 2023&2024 GRADED A+ 100% ACCURATE Henderson-Hasselbach Equation - ANSWER pH = pKa + log ([A-] / [HA]) FMOC Chemical Synthesis - ANSWER Used in synthesis of a growing amino acid chain to a polystyrene bead. FMOC is used as a protecting group on the N-terminus. Salting Out (Purification) - ANSWER Changes soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. Size-Exclusion Chromatography -...

Hydrophobic interactions make important energetic contributions to : a. binding of a hormone to its receptor protein b. enzyme-substrate interactions c. membrane structure d. three-dimensional folding of a polypeptide chain e. all of the above are true f. None of them correct answers E Which of the following is true about the properties of aqueous solutions? a. A pH change from 5.0 to 6.0 reflects an increase in the hydroxide ion concentration ([OH-]) of 20% b. A pH change from 6.0 to...

CHEM 210 Exam 1 Review Questions With Accurate Solutions What is a BL acid? BL base? - ANSWERAcid is a proton donor while a base is proton acceptor List the 6 strong acids - ANSWERHClO4, HCl, HBr, HI, HNO3, H2SO4 List the 6 strong bases - ANSWERLiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 What is the eq. for the dissociation of a weak acid? - ANSWERHA <=> H+ + A- Ka = ([H+][A-])/[HA] What is the eq. for base hydrolysis? - ANSWERB + H2O <=> BH+ + OH- Kb = ([BH+][OH...

Portage Learning CHEM 210 Module 2 Exam Questions With Answers Latest Updated (Graded A+) Which attribute contributes to water’s unusual properties? The geometry of the molecule The polarity of the O-H bonds Question 3 The ability of water molecules to hydrogen bond The bond angle of water All of the answers are correct Question 4 What factor contributes to the bent shape of a water molecule? The dipole arrows in a water molecule The unshared electron pairs on the oxygen atom The e...

"Proton hopping" essentially means that: A) an individual proton "jumps" from one electronegative group to the next. B) a free proton moves from one hydroxyl group of ionized water to the next. C) several protons move between hydrogen bonded water molecules causing the net movement of a photon over a long distance in a short time. D) individual protons are freer to move among and between water molecules in solution. E) hydronium ions are freer to move among and between water molecules ...

What is the equation for corrected phenytoin? - ANSWER-CP= measured serum phenytoin/(0.2*albumin)+0.1 What is the principle intracellular cation? - ANSWER-potassium Principle extracellular is Sodium How many mL in a teaspoon? - ANSWER-5 mL how many mL in a tablespoon - ANSWER-15 mL how many mL in a cup? - ANSWER-240 mL how many mL in an ounce? - ANSWER-29.6 mL how many mL in a pint? - ANSWER-473 mL how many mL in a gallon? - ANSWER-3785 mL How do we calculate mols or m...