BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
1. What is generally true about 8. Which of the following
essential elements and living subatomic par- ticles
organisms? has appreciable mass
but no charge?
2. If you were told that
concentrations of trace elements
above what is required by
organisms generally have no
effect on those organisms, what
would you say?
3. How would you respond to this
rea- soning? Oxygen is not a
greenhouse gas; therefore, gases
containing oxy- gen—such as
ozone, nitrous oxide, and carbon
dioxide—are not greenhouse
gases either.
4. There are naturally
occurring elements.
5. Which of the following is a trace
ele- ment?
6. What are the four most
abundant ele- ments found in
living systems?
7. Which of the following has
negligible mass?
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65
,BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
Although all forms of life require iron, other elements are
required only by certain species. 92; 25 essential to human life.
False. Elevated concentrations of some trace elements such
as cobalt and chromium can be toxic. Copper (Cu) is a trace element. Copper ac-
counts for less than 0.01% of living
matter
False. Compounds can have emergent prop- erties Hydrogen, oxygen, nitrogen, and carbon
that are very different from those of the elements that
form them.
Electron
neutron
9. equals the number of electrons
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65
,BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
The number of protons in an
uncharged atom .
10. An element has eight protons, nine neu- 8 and 17. The atomic mass is the sum
of the
trons, and eight electrons. Its atomic number of protons and neutrons; thus, 8 + 9 =
number and atomic mass, 17.
respectively, are .
11. An uncharged atom of nitrogen (atomic seven protons and seven
electrons
number = 7) has .
12. In which of the following will isotopes of atomic mass
an element always differ?
13. A particular carbon isotope has an 16. Why are radioactive
atomic number of 6 and an atomic isotopes useful in
mass of 14. The respective scientific research?
numbers of neu- trons, protons,
and electrons that this carbon
isotope has are .
14. Phosphorus-32 (radioactive) has
than phosphorus-35
(normal)
15. The most common form of
calcium has 20 protons, 20
neutrons, and 20 elec- trons.
Which of the following elements
would be an isotope of calcium?
3/
65
,BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
8, 6, and 6
An atom with 20 protons, 21 neutrons, and
20 electrons
three fewer protons Because they can be used as tracers to
follow particular atoms and molecules
through meta- bolic pathways
17. 8
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65
QUESTIONS & DETAILED COMPLETE SOLUTIONS
1. What is generally true about 8. Which of the following
essential elements and living subatomic par- ticles
organisms? has appreciable mass
but no charge?
2. If you were told that
concentrations of trace elements
above what is required by
organisms generally have no
effect on those organisms, what
would you say?
3. How would you respond to this
rea- soning? Oxygen is not a
greenhouse gas; therefore, gases
containing oxy- gen—such as
ozone, nitrous oxide, and carbon
dioxide—are not greenhouse
gases either.
4. There are naturally
occurring elements.
5. Which of the following is a trace
ele- ment?
6. What are the four most
abundant ele- ments found in
living systems?
7. Which of the following has
negligible mass?
1/
65
,BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
Although all forms of life require iron, other elements are
required only by certain species. 92; 25 essential to human life.
False. Elevated concentrations of some trace elements such
as cobalt and chromium can be toxic. Copper (Cu) is a trace element. Copper ac-
counts for less than 0.01% of living
matter
False. Compounds can have emergent prop- erties Hydrogen, oxygen, nitrogen, and carbon
that are very different from those of the elements that
form them.
Electron
neutron
9. equals the number of electrons
2/
65
,BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
The number of protons in an
uncharged atom .
10. An element has eight protons, nine neu- 8 and 17. The atomic mass is the sum
of the
trons, and eight electrons. Its atomic number of protons and neutrons; thus, 8 + 9 =
number and atomic mass, 17.
respectively, are .
11. An uncharged atom of nitrogen (atomic seven protons and seven
electrons
number = 7) has .
12. In which of the following will isotopes of atomic mass
an element always differ?
13. A particular carbon isotope has an 16. Why are radioactive
atomic number of 6 and an atomic isotopes useful in
mass of 14. The respective scientific research?
numbers of neu- trons, protons,
and electrons that this carbon
isotope has are .
14. Phosphorus-32 (radioactive) has
than phosphorus-35
(normal)
15. The most common form of
calcium has 20 protons, 20
neutrons, and 20 elec- trons.
Which of the following elements
would be an isotope of calcium?
3/
65
,BIOL 1201 FINAL EXAM LSU – EASLEY
QUESTIONS & DETAILED COMPLETE SOLUTIONS
8, 6, and 6
An atom with 20 protons, 21 neutrons, and
20 electrons
three fewer protons Because they can be used as tracers to
follow particular atoms and molecules
through meta- bolic pathways
17. 8
4/
65
