Test bank for principles of anatomy and physiology 13th edition tortora Study guides, Class notes & Summaries

What region of an atom contains the protons and neutrons? a) cloud b) nucleus c) element d) ring e) shell Answer: b 5) The number of protons in an atom is represented by an element’s a) mass number. b) atomic number. c) atomic mass. d) valence number. e) None of these choices. Answer: b

Test Bank for Principles of Anatomy and Physiology 13th Edition TORTORA(chapter 02 complete)

Question type: Multiple Choice 1) What are the four major elements found in the chemicals that comprise the human 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 Answer: c Difficulty: Easy Learning Objective 1: LO 2.1 Understand how the structures of atoms, ions, molecules, free radicals and compounds are related to the main che...