BIOLOGY THE ESSENTIALS 3RD EDITION HOEFNAGELS TEST BANK

Biology: The Essentials, 3e (Hoefnagels) Chapter 2 The Chemistry of Life 1) The most abundant bulk elements that make up the vast majority of living organisms are A) carbon, hydrogen, oxygen, and calcium. B) carbon, oxygen, iron, and chlorine. C) carbon, hydrogen, iron, and calcium. D) carbon, hydrogen, oxygen, and nitrogen. E) carbon, oxygen, sulfur, and calcium. Answer: D Explanation: These four bulk elements are required for making the macromolecules which compose all living things. Please see section 2.1 Section: 02.01 Topic: Atoms; Chemical Bonds Bloom's: 1. Remember Learning Outcome: 02.01.01 Identify the most important elements in living organisms.; 02.00.01 Explain the relationship between chemistry and biology. Accessibility: Keyboard Navigation 2) The atomic number of an atom or element is the number of A) neutrons in the nucleus. B) electrons in the nucleus. C) protons in the nucleus. D) neutrons in the orbitals. E) protons in the orbitals. Answer: C Explanation: The atomic number is unique to each element. Please see section 2.1B for more information. Section: 02.01 Topic: Atoms Bloom's: 1. Remember Learning Outcome: 02.01.02 Describe the structure of atoms. Accessibility: Keyboard Navigation