Anatomy & Physiology: Chemistry

22 Questions | Total Attempts: 1169

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Anatomy & Physiology: Chemistry

A quiz testing the knowledge of basic chemistry review.


Questions and Answers
  • 1. 
    Explain what electrolytes are and give some examples. Also, explain how they relate to solubility.
  • 2. 
    This diagram is a great example of how almost all reactions in the body are reversible. Explain what is happening with energy when ATP is converted to ADP or vice-versa. When is energy needed? When is it released? When is their more potential energy? When is there less?
  • 3. 
    Keeping in mind the process of a Positive Feedback loop and the Law of Mass Action, explain why it is dangerous for a person to breathe too much into a paper bag when experiencing respiratory alkalosis.
  • 4. 
    The ability of one substance to dissolve another is __________________.
  • 5. 
    What substances readily dissolve in water? Check all that apply. [hint: water is polar]
    • A. 

      Charged particles (i.e. ions, Na+)

    • B. 

      Lipids

    • C. 

      Polar molecules

    • D. 

      Hydrophobic particles

    • E. 

      Hydrophilic particles

    • F. 

      Steroids

  • 6. 
    Energy is the capacity to do work.
    • A. 

      True

    • B. 

      False

  • 7. 
    Energy comes in different forms. What choice is not a form of energy? [once you have identified which are forms of energy - try to give an example of each and identify whether it is an example of potential or kinetic energy]
    • A. 

      Mechanical

    • B. 

      Reactant

    • C. 

      Electrical

    • D. 

      Chemical

  • 8. 
    All forms of energy can be converted to _________.
  • 9. 
    Chemical reactions can either _________ or _________ bonds.[separate answer with a comma]
  • 10. 
    Substances that ENTER the reaction are called _________.
    • A. 

      Products

    • B. 

      Bonds

    • C. 

      Reactants

    • D. 

      Kinetic

  • 11. 
    Molecules must have sufficient _______ to overcome normal repulsion of their _______ ________.[separate answers with a comma]
  • 12. 
    What is the minimum energy that reactants must have to start a chemical reactions?
    • A. 

      Kinetic energy

    • B. 

      Activation energy

    • C. 

      Catalyst energy

    • D. 

      Concentration energy

  • 13. 
    What is not a way that the body gets enough activation energy for all its chemical reactions?
    • A. 

      Catalysts

    • B. 

      Polarity

    • C. 

      Heat

    • D. 

      Concentration

  • 14. 
    Read the question. Then choose the answer that fills in the blanks in the appropriate order. Water is often involved in reactions. When water is made in a reaction it is a _____________ reaction, which is a type of _________ reaction, also known as an anabolic reaction which means it is endergonic or that it___________ energy. When water is split in a reaction it is a ___________ reaction, which is a type of ___________ reaction, also known as a catabolic reaction which means it is exergonic or that it ___________  energy.
    • A. 

      Dehydration, synthesis, requires, hydrolysis, decomposition, releases

    • B. 

      Requires, hydrolysis, dehydration, synthesis, releases, decomposition

    • C. 

      Synthesis, hydrolysis, decomposition, requires, dehydration, releases

    • D. 

      Hydrolysis, decomposition, releases, dehydration, synthesis, requires

  • 15. 
    If something is exergonic that means that energy is released.
    • A. 

      True

    • B. 

      False

  • 16. 
    According to the Law of Mass Action, the direction of the reaction depends on ...
    • A. 

      The amount of ATP in the reactants

    • B. 

      The temperature of the reactive enviroment

    • C. 

      The relative concentration of the reactions and products

    • D. 

      The polarity of the reactants and the products

  • 17. 
    This common chemical reaction is seen throughout the body. Fill in the blanks. [separate answers with a comma] CO2+ ________ --> H2CO3 --> _____ + HCO3-
  • 18. 
    The function of most enzymes depends on the concentrations of _____ and _____. [separate answers with a comma]
    • A. 

      H+ and OH+

    • B. 

      H- and OH+

    • C. 

      H+ and OH-

    • D. 

      Acids and bases

  • 19. 
    The pH scale is based on a log scale.
    • A. 

      True

    • B. 

      False

  • 20. 
    Check all the apply. Which of the following solutions are generally acidic?
    • A. 

      Enviroment of the stomach

    • B. 

      Urine

    • C. 

      [H+] = 10^(-12)

    • D. 

      [H+] = 10^(-3)

    • E. 

      Blood

    • F. 

      Saliva

    • G. 

      PH = 4.8

    • H. 

      PH = 8.3

  • 21. 
    What is the normal pH for blood?[hint: the set point?]
    • A. 

      6.5-6.8

    • B. 

      9.6-10.2

    • C. 

      3.4-3.6

    • D. 

      7.35-7.45

  • 22. 
    Respiratory acidosis is induced by:
    • A. 

      Hypoventalation

    • B. 

      Lack of electrolytes

    • C. 

      Hyperventalation

    • D. 

      Excessive vomiting

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