TEST BANK FOR CAMPBELL BIOLOGY CONCEPTS CONNECTIONS 8TH EDITION BY REECE

Test Bank for Campbell Biology Concepts Connections 8th Edition by Reece Campbell Biology: Concepts and Connections, 8e Chapter 2 The Chemical Basis of Life 2.1 Multiple-Choice Questions 1) The four most common elements in living organisms are A) C, H, O, Fe. B) C, H, O, Na. C) C, H, O, N. D) C, N, O, Na. Answer: C Topic: 2.1 Skill: Knowledge/Comprehension Learning Outcome: 2.1 2) Which of the following is a trace element in the human body? A) nitrogen B) zinc C) oxygen D) hydrogen Answer: B Topic: 2.1 Skill: Knowledge/Comprehension Learning Outcome: 2.1 3) Which of the following statements regarding matter is false? A) All life is composed of matter. B) All matter has mass. C) All matter is composed of elements. D) All matter exists in the form of compounds. Answer: D Topic: 2.1 Skill: Knowledge/Comprehension Learning Outcome: 2.1 4) Which of the following statements best describes a compound? A) A compound is a pure element. B) A compound contains two or more different elements in a fixed ratio. C) A compound is exemplified by sodium. D) A compound is a solution. Answer: B Topic: 2.1