Acid/Base Study MCQ

 

Acid/Base Study

1. The carbonic acid-bicarbonate buffer system functions mainly to __________.

Answer

Correct Answer: Limit ECF pH changes caused by metabolism

Note: This Question is unanswered, help us to find answer for this one

2. The movement of fluids between cellular compartments ________.

Answer

Correct Answer: Is regulated by osmotic and hydrostatic forces

Note: This Question is unanswered, help us to find answer for this one

3. One of the major physiological factors that triggers thirst is ________.

Answer

Correct Answer: A rise in plasma osmolality

Note: This Question is unanswered, help us to find answer for this one

4. Maintenance of normal fluid homeostasis requires all of these except __________.

Answer

Correct Answer: Caloric balance

Note: This Question is unanswered, help us to find answer for this one

5. An increase in blood co2 levels is followed by a(n) ____ in h+ ions and a(n) ____ in blood ph.

Answer

Correct Answer: Increase, decrease

Note: This Question is unanswered, help us to find answer for this one

6. A ____________ is any mechanism that resists changes in ph.

Answer

Correct Answer: Buffer

Note: This Question is unanswered, help us to find answer for this one

7. Of the compounds below, a 0.1 m aqueous solution of ________ will have the highest ph.

Answer

Correct Answer: KCN, Ka of HCN = 4.0 × 10-10

Note: This Question is unanswered, help us to find answer for this one

8. Influx of ____ or _____ ions result in epsps.

Answer

Correct Answer: Na+; Ca++

Note: This Question is unanswered, help us to find answer for this one

9. The kidneys compensate for respiratory alkalosis by _______.

Answer

Correct Answer: Conserving H+ and excreting bicarbonate ion

Note: This Question is unanswered, help us to find answer for this one

10. Amino acids include a side group as well as ______.

Answer

Correct Answer: A central carbon, a hydrogen atom, an amino group, and a carboxyl group.

Note: This Question is unanswered, help us to find answer for this one

11. Lysine can form a salt bridge by interacting with the side chain of ___.

Answer

Correct Answer: Glu

Note: This Question is unanswered, help us to find answer for this one

12. In the ionized form of an amino acid, the carboxylic acid end is ________.

Answer

Correct Answer: Negatively charged

Note: This Question is unanswered, help us to find answer for this one

13. An acid with a ph of 6 has ________ hydrogen ions than pure water.

Answer

Correct Answer: 10-fold more

Note: This Question is unanswered, help us to find answer for this one

14. All of the 20 common amino acids have at least ____ pka values.

Answer

Correct Answer: 2

Note: This Question is unanswered, help us to find answer for this one

15. ______ typically feel slippery when touched.

Answer

Correct Answer: Bases

Note: This Question is unanswered, help us to find answer for this one

16. The addition of hydrochloric acid and ________ to water produces a buffer solution.

Answer

Correct Answer: NH3

Note: This Question is unanswered, help us to find answer for this one

17. With solutions of strong acids and strong bases, the word strong refers to _____.

Answer

Correct Answer: Degree of ionization

Note: This Question is unanswered, help us to find answer for this one

18. The structural formulas of amino acids are the same except for the ________.

Answer

Correct Answer: Side (R) group.

Note: This Question is unanswered, help us to find answer for this one

19. The values used in the scale of ph and poh are derived from a system designed by ______.

Answer

Correct Answer: Sorenson

Note: This Question is unanswered, help us to find answer for this one

20. The addition of hydrofluoric acid and __________ to water produces a buffer solution.

Answer

Correct Answer: NaF

Note: This Question is unanswered, help us to find answer for this one

21. In a neutral solution, the [h+] is _____.

Answer

Correct Answer: 1 x 10-14

Note: This Question is unanswered, help us to find answer for this one

22. A solution with ph 4 has __________ the h+ concentration of a solution with ph 8.

Answer

Correct Answer: 10,000 times

Note: This Question is unanswered, help us to find answer for this one

23. A solution of ph 5 has __________ times more hydrogen ions than that of pure water.

Answer

Correct Answer: 100

Note: This Question is unanswered, help us to find answer for this one

24. A solution at ph 10 contains __________ than the same amount of solution at ph 8.

Answer

Correct Answer: 100 times

Note: This Question is unanswered, help us to find answer for this one

25. Of the acids in the table below, __________ is the strongest acid.

Answer

Correct Answer: HF

Note: This Question is unanswered, help us to find answer for this one

26. Bases dissolve _____ and _____.

Answer

Correct Answer: Fats and oils

Note: This Question is unanswered, help us to find answer for this one

27. The lower the ph of a solution the ______

Answer

Correct Answer: More acidic the solution

Note: This Question is unanswered, help us to find answer for this one

28. The conjugate acid of no2- is ________.

Answer

Correct Answer: HNO2

Note: This Question is unanswered, help us to find answer for this one

29. The hydrogen atom has one _____ and one _____.

Answer

Correct Answer: Proton

Note: This Question is unanswered, help us to find answer for this one

30. An acid is _____.

Answer

Correct Answer: Increases the hydrogen ion concentration of an aqueous solution

Note: This Question is unanswered, help us to find answer for this one

31. What was λmax for fescn2+? _____ nm

Answer

Correct Answer: 450

Note: This Question is unanswered, help us to find answer for this one

32. The alpha-helix is a component of __________ protein structure.

Answer

Correct Answer: Secondary

Note: This Question is unanswered, help us to find answer for this one

33. The ph of a solution of a solution is 4.50. the poh of this solution is ________.

Answer

Correct Answer: 9.50

Note: This Question is unanswered, help us to find answer for this one

34. The addition of sodium hydroxide and ________ to water produces a buffer solution.

Answer

Correct Answer: HC7H5O2

Note: This Question is unanswered, help us to find answer for this one

35. An aqueous solution contains 0.100 m naoh at 25.0 °c. the ph of the solution is ________.

Answer

Correct Answer: 13.0

Note: This Question is unanswered, help us to find answer for this one

36. A result of the common ion effect is ________

Answer

Correct Answer: That the selective precipitation of a metal ion, such as Ag+, is promoted by the addition of an appropriate counterion (X-) that produces a compound (AgX) with a very low solubility

Note: This Question is unanswered, help us to find answer for this one

37. The single most important factor influencing potassium ion secretion is ________.

Answer

Correct Answer: Potassium ion concentration in blood plasma

Note: This Question is unanswered, help us to find answer for this one

38. When you add acid to a solution, _____.

Answer

Correct Answer: The hydrogen ion concentration increases and lowers the pH

Note: This Question is unanswered, help us to find answer for this one

search