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Biochemistry - Water, pH and Macromolecules

Exercise : Water, pH and Macromolecules - Section 1
  • Water, pH and Macromolecules - Section 1
11.
What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7?
7
7 x 10-7
5 x 10-7
1 x 10-7
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Which of the following alcohols would be most soluble in water?
methanol
ethanol
butanol
octanol
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the following acid/base pairs act as natural buffers in living systems?
H2CO3/HCO3-
H2PO4-/HPO42-
Histidine+/histidine
All of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water?
be repelled by water
It will be attracted to water
It will form a membrane in water
It will act as a buffer and stabilize the pH
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
A compound that is capable of forming hydrogen bonds with water
is probably held together by noncovalent bonds
contains at least some polar covalent bonds
should act as a good buffer for acids and bases
does not dissolve well in water
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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