, DOWNLOAD THE Test Bank for Essentials of General Organic and
Biochemistry 3rd Edition Guinn
Name: Class: Date:
Chapter 2 Atomic Structure and Radioisotopes
1. What is a micronutrient?
a. an element required at only certain times during your life
b. an essential element needed in quantities less than 10 g/day
c. an essential element needed in quantities less than 100 mg/day
d. a nonessential element, useful in small quantities
e. nutrients needed in large quantities
ANSWER: c
2. What is a common symptom of iodine deficiency?
a. weak bones and teeth
b. enlarged thyroid
c. anemia
d. slow wound healing
e. All of these are common symptoms.
ANSWER: b
3. _____ is an important component of hemoglobin. Without this protein, tissues become starved of oxygen, and
fatigue and shortness of breath results.
a. Iodine
b. Fluorine
c. Zinc
d. Iron
e. Oxygen
ANSWER: d
4. _____ is most commonly ingested along with salt.
a. Iodine
b. Fluorine
c. Zinc
d. Iron
e. Oxygen
ANSWER: a
5. Adding _____ to drinking water is a common practice in many cities, meant to strengthen tooth enamel and
decrease dental cavities.
a. iodine
b. fluorine
c. zinc
d. iron
e. oxygen
ANSWER: b
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, DOWNLOAD THE Test Bank for Essentials of General Organic and
Biochemistry 3rd Edition Guinn
Name: Class: Date:
Chapter 2 Atomic Structure and Radioisotopes
6. _____ is an important component of the immune system as well as required by many enzymes.
a. Iodine
b. Fluorine
c. Zinc
d. Iron
e. Oxygen
ANSWER: c
7. Which diagram of an atom BEST represents the scale of the nucleus and electrons?
a. a.
b. b.
c. c.
d. d.
e. e.
ANSWER: a
8. According to the current model of the atom, the part of the diagram labeled A is made up of
a. protons.
b. neutrons.
c. electrons.
d. protons and neutrons.
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, DOWNLOAD THE Test Bank for Essentials of General Organic and
Biochemistry 3rd Edition Guinn
Name: Class: Date:
Chapter 2 Atomic Structure and Radioisotopes
e. protons, neutrons, and electrons.
ANSWER: c
9. According to the current model of the atom, the part of the diagram labeled B is made up of
a. protons.
b. neutrons.
c. electrons.
d. protons and neutrons.
e. protons, neutrons, and electrons.
ANSWER: d
10. Which statement about the model of the atom is TRUE?
a. The nucleus is much less dense than the surrounding electrons.
b. Electrons orbit the nucleus like planets around the Sun.
c. This is the first model of the atom.
d. The atom is mostly empty space.
e. The model of the atom was developed by looking directly at an atom.
ANSWER: d
11. Which statement about the model of the atom is TRUE?
a. Protons and neutrons are evenly distributed throughout the atom.
b. Electrons can be directly observed.
c. Electrons are now known to orbit the nucleus like a planet orbits the Sun.
d. The path of a single electron can now be followed exactly.
e. We can determine the probability of finding an electron in a region of space.
ANSWER: e
12. The nucleus is composed of _____.
a. protons
b. neutrons
c. electrons
d. protons and neutrons
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Biochemistry 3rd Edition Guinn
Name: Class: Date:
Chapter 2 Atomic Structure and Radioisotopes
1. What is a micronutrient?
a. an element required at only certain times during your life
b. an essential element needed in quantities less than 10 g/day
c. an essential element needed in quantities less than 100 mg/day
d. a nonessential element, useful in small quantities
e. nutrients needed in large quantities
ANSWER: c
2. What is a common symptom of iodine deficiency?
a. weak bones and teeth
b. enlarged thyroid
c. anemia
d. slow wound healing
e. All of these are common symptoms.
ANSWER: b
3. _____ is an important component of hemoglobin. Without this protein, tissues become starved of oxygen, and
fatigue and shortness of breath results.
a. Iodine
b. Fluorine
c. Zinc
d. Iron
e. Oxygen
ANSWER: d
4. _____ is most commonly ingested along with salt.
a. Iodine
b. Fluorine
c. Zinc
d. Iron
e. Oxygen
ANSWER: a
5. Adding _____ to drinking water is a common practice in many cities, meant to strengthen tooth enamel and
decrease dental cavities.
a. iodine
b. fluorine
c. zinc
d. iron
e. oxygen
ANSWER: b
Copyright Macmillan Learning. Powered by Cognero. Page 1
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, DOWNLOAD THE Test Bank for Essentials of General Organic and
Biochemistry 3rd Edition Guinn
Name: Class: Date:
Chapter 2 Atomic Structure and Radioisotopes
6. _____ is an important component of the immune system as well as required by many enzymes.
a. Iodine
b. Fluorine
c. Zinc
d. Iron
e. Oxygen
ANSWER: c
7. Which diagram of an atom BEST represents the scale of the nucleus and electrons?
a. a.
b. b.
c. c.
d. d.
e. e.
ANSWER: a
8. According to the current model of the atom, the part of the diagram labeled A is made up of
a. protons.
b. neutrons.
c. electrons.
d. protons and neutrons.
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, DOWNLOAD THE Test Bank for Essentials of General Organic and
Biochemistry 3rd Edition Guinn
Name: Class: Date:
Chapter 2 Atomic Structure and Radioisotopes
e. protons, neutrons, and electrons.
ANSWER: c
9. According to the current model of the atom, the part of the diagram labeled B is made up of
a. protons.
b. neutrons.
c. electrons.
d. protons and neutrons.
e. protons, neutrons, and electrons.
ANSWER: d
10. Which statement about the model of the atom is TRUE?
a. The nucleus is much less dense than the surrounding electrons.
b. Electrons orbit the nucleus like planets around the Sun.
c. This is the first model of the atom.
d. The atom is mostly empty space.
e. The model of the atom was developed by looking directly at an atom.
ANSWER: d
11. Which statement about the model of the atom is TRUE?
a. Protons and neutrons are evenly distributed throughout the atom.
b. Electrons can be directly observed.
c. Electrons are now known to orbit the nucleus like a planet orbits the Sun.
d. The path of a single electron can now be followed exactly.
e. We can determine the probability of finding an electron in a region of space.
ANSWER: e
12. The nucleus is composed of _____.
a. protons
b. neutrons
c. electrons
d. protons and neutrons
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