7. Do you think freezing temperature caused the amylase to denature?
8. Suppose a substance A has a pH of 3 while substance B has a pH of 7. Which substance has a higher concentration of hydrogen ions?
7. Do you think freezing temperature caused the amylase to denature?
8. Suppose a substance A has a pH of 3 while substance B has a pH of 7. Which substance has a higher concentration of hydrogen ions?
Related textbook solutions
Related questions
QUESTION 9
How did this experiment with Benedict's solution demonstrate the digestion of starch by amylase? In other words, how did you know the starch was digested?
| We compared control samples with samples that had been treated with amylase and measured the pH using a pH indicator. When the solution becomes orange or red, it indicates that the starch has been digested. | ||
| We compared control samples with samples that had been treated with amylase and used a Benetict's test for Reducing Sugar. When Benedict's turns orange/red it indicates that starch has been digested. | ||
| We compared control samples the sample to been treated with amylase and observed which had become liquefied. The solution becomes liquefied, it indicates that the starches have been digested. | ||
| Compare control samples with samples that had been treated with amylase. Benedict's turns light blue it indicates that starch has been digested. |
QUESTION 10
What happens to saliavry amylase when it arrives with the bolus in the stomach? Because of this, what happens to charbohydrate digestion? (Hint: Look up the optimum pH for amylase and what is the pH of the gastric juices)
| When the bolus hit the stomach, the amylase enyzmes continue to function and starch digestion continues. | ||
| When the bolus hit the stomach, the amylase enyzmes denature and cease to function and starch digestion stops. | ||
| When the bolus hit the stomach, the amylase enyzmes denature and cease to function. However, starch digestion continues because pepsin continues the digestion of starch. |
(Choose all that are correct) Which of these statement(s) is/are correct about pH?
| The pH of a neutral solution is 7, which means that the concentration of the H+ ions is equal to the concentration of the OH- ions. |
| If a solution has 10-5 M/L OH- ions, the pH of the solution is 5 |
| If a solution has a pH of 8, the H+ concentration is less than the OH- concentration |
| In a water solution, the exponents of the H+ concentration and the OH- concentration must add up to 10. |
| If you know the pH, you can calculate the Hydrogen ion concentration |
| pH is defined as the concentration of Hydrogen ions |
