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TEST BANK FOR WHAT IS LIFE A

GUIDE TO BIOLOGY WITH

PHYSIOLOGY 3RD EDITION

PHELAN

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Test Bank to accompany Jay Phelan’s What Is Life? A Guide to Biology with

Physiology, Third Edition

© 2015 by W. H. Freeman and Company. All rights reserved.

Chapter 2

Chemistry

Multiple-Choice Questions

1. An atom of iron has the atomic number 26. This means that it has:

a) 52 protons.

b) 13 neutrons.

c) an atomic mass of 26.

d) 26 protons.

e) 13 electrons.

Answer: d

Section: 2.1

Bloom’s level: 1

2.

What is missing from this cell of the periodic table?

a) the atomic number for nitrogen, 6

b) the atomic number for nitrogen, 14

c) the atomic number for nitrogen, 28

d) the atomic number for nitrogen, 8

e) the atomic number for nitrogen, 7

Answer: e

Section: 2.1

Bloom’s level: 1

3. Carbon-14 has the same:

a) atomic number and atomic mass as carbon-12.

b) atomic number and, therefore, the same number of neutrons as carbon-13.

c) atomic mass as both carbon-12 and carbon-13.

d) number of protons but more neutrons than carbon-12.

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e) atomic mass and, therefore, the same number of neutrons as carbon-12.

Answer: d

Section: 2.1

Bloom’s level: 3

4. The four most abundant elements in living organisms are:

a) carbon, nitrogen, oxygen, and calcium.

b) carbon, nitrogen, potassium, and oxygen.

c) sodium, nitrogen, carbon, and silicon.

d) hydrogen, nitrogen, oxygen, and carbon.

e) carbon, hydrogen, nitrogen, and phosphorus.

Answer: d

Section: 2.1

Bloom’s level: 1

5. __________ is the smallest chemical unit of a type of pure substance.

a) A cell

b) A molecule

c) An amino acid

d) An atom

e) A proton

Answer: d

Section: 2.1

Bloom’s level: 1

6. All matter on earth, both living and non-living, is made up of:

a) cells.

b) DNA.

c) carbohydrates.

d) phospholipids.

e) atoms.

Answer: e

Section: 2.1

Bloom’s level: 2

7. Of all the elements that occur on earth, how many are found in your body?

a) 116

b) 4

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