pH and Macromolecules

Question: H2O and CH4 are both examples of
[A].

molecules

[B].

ions

[C].

acids

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Who discovered and described the blood groups (ABO) classification?
[A].

Theodor Kocher

[B].

Karl Landsteiner

[C].

Otto Warburg

[D].

Karl Hooper

Answer: Option B

Explanation:

No answer description available for this question.

Question: Which of the following statements about covalently bonded molecules is false?
[A].

Electrons are shared between the atoms that make up the molecule

[B].

Noncovalent bonds may also be present, especially if the molecule is large

[C].

Such molecules often result from the interaction of ionized atoms

[D].

The chemical bonds that hold the molecule together are relatively strong

Answer: Option C

Explanation:

No answer description available for this question.

Question: Which of the following organic groups are found in naturally occuring amino acids?
[A].

Guanidinium ion

[B].

Indole

[C].

Imidazole

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Most of the important functional groups in biological molecules contain
[A].

oxygen and/or nitrogen and are acidic

[B].

oxygen and a phosphate

[C].

nitrogen and a phosphate

[D].

oxygen and/or nitrogen and are polar

Answer: Option D

Explanation:

No answer description available for this question.