Chapter 2: The Chemical Level of Organization Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora.

Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora. Multiple Choice & Essays 1. What are the major elements found in the body? a. Nitrogen, oxygen, calcium, sodium b. Hydrogen, carbon, phosphorus, calcium c. Carbon, hydrogen, oxygen and nitrogen d. Oxygen, nitrogen, potassium, calcium e. Potassium, phosphorus, sodium, hydrogen Ans: C Difficulty: easy Feedback: 2.1 2. The subatomic particles that make up atoms include: a. Neutrons, quarks, muons b. Protons, neutrons, electrons c. Muons, positons, neutrons d. Electrons, quarks, protons e. Positons, protons, neutrons Ans: B Difficulty: easy Feedback: 2.1 3. Which of the following particles has a neutral charge? a. Neutron b. Electron c. Proton d. All of the above Ans: A Difficulty: easy Feedback: 2.1 4. What region of an atom contains the protons and neutrons? a. Cloud b. Nucleus c. Element d. Ring e. Shell Ans: B Difficulty: easy Feedback: 2.1 5. This is the number of protons or electrons. a. Mass number b. Atomic number c. Isotope d. Valence shell e. None of the above Ans: B Difficulty: easy Feedback: 2.1 6. As an atoms nucleus decays, it will emit radiation. This is seen in a. Compounds b. Cations c. Anions d. Isotopes e. Molecules Ans: D Difficulty: medium Feedback: 2.1 7. This refers to the atomic weight of all naturally occurring isotopes of an element. a. Mass number b. Atomic number c. Atomic mass d. Ionic mass e. Covalent mass Ans: C Difficulty: medium Feedback: 2.1 8. Describe a beneficial use of radiation?. Ans: Radiation can be used for imaging purposes, create tracers and treatment of cancers by destroying cancer cells. Difficulty: medium Feedback: 2.1 9. Briefly describe the octet rule. Ans: One atom is more likely to interact with another atom if doing so will leave both atoms with eight electrons in their valence shells. Difficulty: medium Feedback: 2.1 10. Which of the following particles plays a role in creating chemical bonds? a. Neutron b. Electron c. Proton d. All of the above Ans: B Difficulty: medium Feedback: 2.2 11. This is a negatively charged atom. a. Superoxide b. Isotope c. Catalyst d. Ion e. Valence Ans: D Difficulty: easy Feedback: 2.2 12. Which of the below provide an electrical current?. a. Isotope b. Ionic molecule c. Compound d. Electrolyte e. Valence molecule Ans: D Difficulty: easy Feedback: 2.5