Pepsin is protein that breaks down polypeptides in the stomach, pepsin functions optimally at body temperature (37° C), a pH of 1.7, and salinity of 0.9%. Which of the following environmental conditions would denature Pepsin? Select all that apply. A basic pH solution. A neutral pH solution. A temperature of 10° C. A solution with salinity of 10% A temperature of 45° C. An acidic pH solution.
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- If the following lipids are present: phosphatidylserine / phosphatidylcholine / sphingomyelin / triacylglycerol / and cholesterol ester are mixed and the mixture is separated by column technique. chromatography with silica gel in the column and then start Leach with a less polar solvent. The drought gradually increases the polarity of the less polar solvent. and gradually increasing the polarity of the solvent How are the lipids in the mixture in order to emerge from the column? along with explaining the reasons ..ASAP, PLEASE ANSWER ALL THE SUBQUESTIONS TO GET A LIKE. TRUE OR FALSE? Buffering capacity continuously decreases as acids and bases are continuously added, considering that its components are continuously used up. Unsaturation of fatty acids is brought about by the presence of multiple bonds between carbon atoms bonded together in a long chain. A buffer solution is composed of a weak acid and a strong base, or a weak base and a strong acid. Buffering capacity continuously decreases as acids and bases are continuously added, considering that its components are continuously used up.Figure 2.12 A pH scale. Here, red dots signify hydrogen ions (H+) and blue dots signify hydroxyl ions (OH). Also shown are the approximate pH values for some common solutions. This pH scale ranges from 0 (most acidic) to 14 (most basic). A change of one unit on the scale corresponds to a tenfold change in the amount of H+ ions. Photos, JupiterImages Corporation. Figure It Out: What is the approximate pH of cola?
- When dissolved in water, an _________ donates H+; an ________ accepts H+. a. acid; base c. buffer; solute b. base; acid d. base; bufferHow many grams of sodium chloride is required to render 80ml of 2% solution of ascorbic acid isotonic with blood. using The sodium chloride equivalent of drug = 0.18 Select one: O a. All of the answer is wrong. Ob 0.256 gm O c. 0.576 gm Od 0.432 gmYou had a second solution with an unknown concentration of Protein X that had to be diluted 4x before you could measure the absorbance. The diluted solution had an absorbance of 0.76. What is the concentration of the diluted solution in ug/ml and what is the concentration of the original solution
- What is true about 'cracking' of emulsion? Select one: O a. The primary emulsion does not become white due to coalescence of the dispersed phase O b. The globules of dispersed phase rise to the surface O c. Cracking is reversible and redispersion can be achieved by shaking O d. It is a result of phase inversion due to prolong storageCan a tablet be sufficient in neutralizing a 100 mL of stomach acid with a pH of 1.50? Hint: H+ concentration is antilog(-pH). Answer it by YES or NO, why?Several chemical pollutants from a paper mill are released into the nearby environment. Compound A is rich in calcium and magnesium. Compound B binds tightly to all free polypeptides and proteins in the soil. Compound C is structurally similar to abscisic acid. Beberapa bahan pencemar kimia dari kilang kertas dilepaskan ke persekitaran yang berdekatan. Sebatian A kaya dengan kalsium dan magnesium. Sebatian B mengikat dengan ketat pada semua polipeptida dan protein bebas di dalam tanah. Sebatian C mempunyai struktur yang serupa dengan asid absisik. Based on this scenario, which compounds are most likely to harm the surrounding plants and their effects on the plants?
- Consider a mixture comprised of the proteins below: Protein that will most strongly bind to an anion exchange column is? Protein that will elute first in gel filtration chromatography is? Protein that will elute last in hydrophobic interaction chromatography is? Protein that will elute last in carbohydrate containing column is ?An H+ ion is smaller than an H2O molecule, and a glycerol molecule, a three-carbon alcohol, is much larger. Both readily dissolve in H2O. Why do aquaporins fail to transport H+ whereas some can transport glycerol?Choose the FALSE statement An indicator can be used to monitor a buffer range When pH equals PKa of weak acid, the buffer capacity is the greatest Polyprotic acids have multiple stoichiometric points in their titration curve At the mid-point of titration of weak acid by strong base, the pH of the solution -does not equal the pKa of the weak acid The moles of titrant equals moles of titrate