C190 - Introduction to Biology WGU - Unit 2: Modules 4-10. Questions and answers, rated A+ 2024

Biological macromolecules are: - -special molecules that contain carbon atoms covalently bonded with hydrogen atoms Atoms are made of small subatomic particles called: - -protons, neutrons, and electrons Proton electrical charge: - -positive Neutron electrical charge: - -neutral, neither positive nor negative The nucleus has what kind of charge? - -a positive overall charge since the protons are in it with the neutrons Protons and neutrons have a mass of what? - -1 atomic mass unit (amu) Electron electrical charge: - -negative Electrons are found where? - -outside of the nucleus in the "shells" Electron has a mass of what? - -nearly nothing, negligible 0 amu When the number of protons equals the number of electrons, then the atom is: - -electrically neutral