Water, pH and Macromolecules – Section 1

16. A biological polymer contains alanine, tyrosine, and lysine. Which of the following will be true about this molecule?

A. DNA
B. Strong base
C. Phospholipid
D. Protein

Correct Answer: D. Protein

17. The effectiveness or capacity of a buffer solution can be affected by

A. molar concentration of the buffer components
B. concentration of the conjugate base to the weak acid
C. both (a) and (b)
D. temperature of buffer components

Correct Answer: C. both (a) and (b)

18. Who discovered and described the blood groups (ABO) classification?

A. Theodor Kocher
B. Karl Landsteiner
C. Otto Warburg
D. Karl Hooper

Correct Answer: B. Karl Landsteiner

19. H2O and CH4 are both examples of

A. molecules
B. ions
C. acids
D. none of these

Correct Answer: A. molecules

20. Hydrogen bonds and hydrophilic interactions are types of

A. weak chemical bonds that hold together the atoms within a molecule
B. strong chemical bonds that hold together the atoms within a molecule
C. weak chemical bonds that link together separate molecules
D. strong chemical bonds that link together separate molecules

Correct Answer: C. weak chemical bonds that link together separate molecules

Leave A Comment?

four × 2 =