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Biochemistry - Water, pH and Macromolecules

Exercise : Water, pH and Macromolecules - Section 1
  • Water, pH and Macromolecules - Section 1
26.
Which of the following character does not apply to water?
The water molecule is asymmetric
The water molecule readily forms hydrophobic interactions
The covalent bonds in water are highly polarized
All three atoms in the water molecule readily form hydrogen bonds
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The dissociation constant of H2O at 25° C is
10-14 M
1014 M
10-7 M
107 M
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Weak acids generally have pKa
values less than 1
pKa values greater than 2
been seldom found in living systems
that cannot be used to buffer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The reason that fats contain more energy than simple sugars, is fats have many more
carbon atoms
hydrogen atoms
covalent bonds
hydrogen bonds
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The main difference between an acid and a base is that
bases are polar molecules and acids are not
acids are polar molecules and bases are not
bases donate hydrogen ions in water while acids accept hydrogen ions
acids donate hydrogen ions in water while bases accept hydrogen ions
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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