A&p 1 Exam 1

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Chemistry


Questions and Answers
  • 1. 
    What bond has 2 or more atoms that share electrons rather than gaining or losing them
    • A. 

      Ionic bond

    • B. 

      Covalent bond

    • C. 

      Polar bond

  • 2. 
    Force of attraction that holds together ions with opposite carge...
    • A. 

      Ionic bond

    • B. 

      Polar bond

    • C. 

      Covalent bond

  • 3. 
    An atom or group of atoms with unpaird electron in the outer most shell
    • A. 

      Isotopes

    • B. 

      Cation

    • C. 

      Free radical

  • 4. 
     a substance that contains atoms of 2 or more different elements
    • A. 

      Atom

    • B. 

      Compound

    • C. 

      Nucleus

  • 5. 
    Two or more atoms share electrons
    • A. 

      Ion

    • B. 

      Compound

    • C. 

      Molecular

  • 6. 
    A negative charged ion
    • A. 

      Anion

    • B. 

      Cation

  • 7. 
    A positive charged ion
    • A. 

      Anion

    • B. 

      Cation

  • 8. 
    An atom that has a positive or negative charge because it has unequal number of protons and electrons
    • A. 

      Cation

    • B. 

      Anion

    • C. 

      Ion

  • 9. 
    The  smallest of matter that retains the properties and characteristic of the element
    • A. 

      Atom

    • B. 

      Cell

    • C. 

      Ion

  • 10. 
    Formation of new cells for tissue growth repair or replacement; the production of all new individual
    • A. 

      Digestive

    • B. 

      Respiratory

    • C. 

      Reproduction

  • 11. 
    Give rise to cells that under go differentiation
    • A. 

      Stem cells

    • B. 

      Compound

    • C. 

      Molecular

  • 12. 
    Atoms of a molecule are held together by forces of attraction.
    • A. 

      Chemical bond

    • B. 

      Covalent bond

    • C. 

      Ionic bond

  • 13. 
    Valence electrons are thos in the outermost shell
    • A. 

      Protons

    • B. 

      Valence shell

    • C. 

      Neutrons

  • 14. 
    An electrons state of potential energy
    • A. 

      Ions

    • B. 

      Energy level

    • C. 

      Isotopes

  • 15. 
    Atoms of an element have the same number of protons but may differ in number of neutrons. most are stable but some are radioactive giving off particles and energy.
    • A. 

      Isotopes

    • B. 

      Atom

    • C. 

      Cells

  • 16. 
    Form by interaction between 2 different atoms.
    • A. 

      Ions

    • B. 

      Anion

    • C. 

      Compound

  • 17. 
    Atoms share electrons. written as molecular formula showing the number of atoms of each element. 
    • A. 

      Isotopes

    • B. 

      Molecular

    • C. 

      Ions

  • 18. 
    Remove an electron
    • A. 

      Anion

    • B. 

      Cation

    • C. 

      Ion

  • 19. 
    Add electrons
    • A. 

      Cation

    • B. 

      Ion

    • C. 

      Anion

  • 20. 
    An atom that gave up or gained an electron. written with its chemical symbol and (+) or (-).
    • A. 

      Ions

    • B. 

      Anion

    • C. 

      Cation

  • 21. 
    The sum of protons plus neutrons in the nucleus.
    • A. 

      Mass number

    • B. 

      Atomic number

    • C. 

      Atom

  • 22. 
    Number of protons
    • A. 

      Atom

    • B. 

      Mass number

    • C. 

      Atomic number

  • 23. 
    The smallest unit of matter that still retains the properties of an element.
    • A. 

      Atom

    • B. 

      Ion

    • C. 

      Isotopes

  • 24. 
    Normal equilibrium of body processes are disrupted.
    • A. 

      Homeostasis

    • B. 

      Homeostasis imbalance

    • C. 

      Compounds

  • 25. 
    Response strengthens or reinforces the change.
    • A. 

      Positive feedback

    • B. 

      Negative feedback

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