Chapter 1: Practice Questions Flashcards

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1
Q

In looking at the periodic table, the following information would be found about Nitrogen:
14
7 N

A

It has an atomic mass of 14 atomic mass units and 7 electrons.

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2
Q

Isomers are molecules that

A

Have the same molecular formula

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3
Q

In living organisms, buffers do which of the following?

A

Maintain pH in the cells within a narrow range, allowing enzymes to function.

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4
Q

By what factor would the concentration of hydrogen (hydronium) ions be decreased if the pH of a solution changed from 4.5 to 6.5?

A

100

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5
Q
The following structural formula is representative of which functional group? 
-C=O
  \
   O
   /
 H
A

Carboxyl

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6
Q

Where would you expect to find these functional groups?
H |
| C = O
- N |
| O
H |
H

A

Amino Acid

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7
Q

Of the following, which is not considered to be a polymer?

a) cellulose
b) RNA
c) Starch
d) Protein
e) Fat

A

Fat

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