Chapter 02 - The Molecules of Life
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Chapter 02
The Molecules of Life
Multiple Choice Questions
1. In addition to investigations with bacteria that led to him being considered the Father of
Microbiology, Pasteur also
A. found that some molecules can exist as stereoisomers.
B. created aspartame.
C. separated organic acids using a microscope.
D. discovered polarized light.
E. found that some molecules can exist as stereoisomers AND separated organic acids using a
microscope.
2. The positively charged component of the atom is the
A. electron.
B. neutron.
C. proton.
D. quark.
3. The negatively charged component of the atom is the
A. proton.
B. nucleus.
C. neutron.
D. electron.
2-1
,Chapter 02 - The Molecules of Life
4. The uncharged component of the atom is the
A. electron.
B. proton.
C. neutron.
D. muon.
2-2
, Chapter 02 - The Molecules of Life
5. The part of the atom that is most involved in chemical reactivity is the
A. proton.
B. neutron.
C. electron.
D. nucleus.
6. Which determines the chemical and physical properties of the atom?
A. electron
B. neutron
C. atomic weight
D. atomic number
7. Electrons
A. are found in orbitals.
B. may gain or lose energy.
C. may move from one orbital to another.
D. are located farthest from the nucleus and have the least energy.
E. are found in orbitals, may gain or lose energy, and may move from one orbital to another.
8. The atom, as a whole, is uncharged because
A. the number of protons equals the number of neutrons.
B. the number of electrons equals the number of neutrons.
C. neutrons neutralize the charges.
D. the number of protons equals the number of electrons.
9. The atomic number is equal to
A. the number of electrons.
B. the number of electrons plus neutrons.
C. the number of protons.
D. the number of neutrons and protons.
2-3
For This And Any Other test Bnaks, slotion Manuals,
Quizess, Exams And Assignments Contact us At
Chapter 02
The Molecules of Life
Multiple Choice Questions
1. In addition to investigations with bacteria that led to him being considered the Father of
Microbiology, Pasteur also
A. found that some molecules can exist as stereoisomers.
B. created aspartame.
C. separated organic acids using a microscope.
D. discovered polarized light.
E. found that some molecules can exist as stereoisomers AND separated organic acids using a
microscope.
2. The positively charged component of the atom is the
A. electron.
B. neutron.
C. proton.
D. quark.
3. The negatively charged component of the atom is the
A. proton.
B. nucleus.
C. neutron.
D. electron.
2-1
,Chapter 02 - The Molecules of Life
4. The uncharged component of the atom is the
A. electron.
B. proton.
C. neutron.
D. muon.
2-2
, Chapter 02 - The Molecules of Life
5. The part of the atom that is most involved in chemical reactivity is the
A. proton.
B. neutron.
C. electron.
D. nucleus.
6. Which determines the chemical and physical properties of the atom?
A. electron
B. neutron
C. atomic weight
D. atomic number
7. Electrons
A. are found in orbitals.
B. may gain or lose energy.
C. may move from one orbital to another.
D. are located farthest from the nucleus and have the least energy.
E. are found in orbitals, may gain or lose energy, and may move from one orbital to another.
8. The atom, as a whole, is uncharged because
A. the number of protons equals the number of neutrons.
B. the number of electrons equals the number of neutrons.
C. neutrons neutralize the charges.
D. the number of protons equals the number of electrons.
9. The atomic number is equal to
A. the number of electrons.
B. the number of electrons plus neutrons.
C. the number of protons.
D. the number of neutrons and protons.
2-3
