Anatomy and Physiology Unit 2

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  1. What occupies the space around the nucleus of an atom?
  2. True or False

    The physical and chemical properties of a compound are the same of the elements it's from
  3. What type of electron can form a bond?
  4. How many valence electrons are in group 17?
  5. What type of ion forms when an atom loses an electron?
  6. Why does ice float on water?
    Because the ice is less dense than the water
  7. How do you classify a substance with a pH of 6?
  8. 2H2+O---> 2H2O

    What are the reactants and products?
    Reactants ---> Products

    H, O                H, O
  9. What are the 3 subatomic particles? What are their charges? Which ones are found in the nucleus (underlined)?
    • Protons +
    • Neutrons o
    • Electrons -
  10. Isotopes have a different number of _____
  11. Covalent bonds are a result of what?
    Sharing electrons
  12. What compound removes hydrogen ions to an aqueous solution?
    A base
  13. List the 4 elements that make up 96% of your body
    • Carbon, Hydrogen, Oxygen, Nitrogen
    • or

  14. What do you call something that makes up only .01% of your body?
    Trace element
  15. Which of these are organic?

    O2, H2O, CH4, SO4

    (all organic molecules have to include carbon)
  16. What do you call macromolecules with repeating units?
  17. Describe a monosaccaride
    Simple sugar
  18. What polysaccaride that us a sugar stockpile in plants?
  19. Animals store their sugar as ____
  20. What are 3 functions of fats?
    Store energy, cushion organs, insulate the body
  21. What has the max number of hydrogen atoms?
    Saturated fats
  22. What are the 4 base pairs found in DNA?
    Cytosine, Thymine, Adenine, Guanine
  23. What is the monomer that makes up a fat?
    Glycerol + 3 fatty acid chains
  24. How many bases are in human DNA?
    3 billion base pairs (6 billion bases)
  25. What builds up a polymer? What breaks it down?
    Dehydration breaks it

    Hydrolysis builds it
  26. List some properties of water
    Has a high heat capacity, universal solvent, polar, cohesion/adhesion, neutral pH, solid form is less dense than the liquid form
  27. List the 4 polymers and the monomers that make them up
    • Proteins- amino acids
    • Lipids- glycerol + 3 fatty acid chains
    • Carbohydrate- macromolecules
    • Nucleic Acids- nucleotides
  28. What is an enzyme? Explain how it can be classified as a catalyst
    It's something that increases the speed of a body's reaction. They're special proteins 
  29. What is activation energy? What do enzymes do to activation energy?
    The amount of energy required to cause a reaction. They lower the activation energy
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Anatomy and Physiology Unit 2
2013-10-09 04:11:43
Anatomy Physiology

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