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C190 - INTRODUCTION TO BIOLOGY WGU - UNIT 2: MODULES 4-10 EXAM 2025 QUESTIONS AND ANSWERS Biological macromolecules are: - ....ANSWER ...-special molecules that contain carbon atoms covalently bonded with hydrogen atoms Atoms are made of small subatomic particles called: - ....ANSWER ...-protons, neutrons, and electrons Proton electrical charge: - ....ANSWER ...-positive Neutron electrical charge: - ....ANSWER ...-neutral, neither positive nor negative The nucleus has what kind of charge? - ....ANSWER ...-a positive overall charge since the protons are in it with the neutrons Protons and neutrons have a mass of what? - ....ANSWER ...-1 atomic mass unit (amu) Electron electrical charge: - ....ANSWER ...-negative Electrons are found where? - ....ANSWER ...-outside of the nucleus in the "shells" Electron has a mass of what? - ....ANSWER ...-nearly nothing, negligible 0 amu ...COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED..... 100% PASS RATE 1