BIO 24 - Chapter 2

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daytron
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73808
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BIO 24 - Chapter 2
Updated:
2011-03-19 04:54:10
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BIO Chapter
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Basic Chemistry
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  1. Allows ions to take part in other chemical reactions...
    Dissociation
  2. Made of only one type of atom
    Element
  3. Water within the cell is called?
    Intercellular Fluid
  4. Sugar, Starch and Glycogen are all types of what?
    Carbohydrates
  5. This decreases the conecntration of H+ ions
    Base
  6. _______ are _______ that speeds up the rate of chemical reaction
    Enzymes, Catalyst
  7. Inorganic chemical needed by the body in small amounts
    Trace Elements
  8. These are made up of amino acids
    Proteins
  9. These are the subunits of a protein
    Amino Acids
  10. This is a system that helps minimizes changes in pH
    Buffer systems
  11. The energy productin within cells is called?
    Cell Respiration
  12. A bond that holds ions together is called?
    Ionic bond
  13. DNA and RNA are types of what?
    Nucleic acids
  14. The smallest part of an element is?
    an Atom
  15. Sharing of electrons between atoms forms a?
    Covalent bond
  16. This increases the concentration of H+ ions
    an Acid
  17. This makes up 35% of the body's total water
    Extracellular Fluid
  18. The direct source of energy for cells is?
    Glucose
  19. An atom that has a charge after losing or gaining electrons is called?
    An Ion
  20. What is the normal range of pH in blood?
    7.35-7.45
  21. Which two compounds are important for energy storage in the body?
    Glycogen and True fats (lipids)
  22. Intracellular fluid is the name of water found in what?
    Cells which covers 65% of the bodys water
  23. Extracellular fluid is the name for water found in what?
    • covers 35% of the bodys water.
    • Plasma - in blood vessel
    • Lymph - in lymphatic vessels
    • Tissue fluid - in tissue spaces between cells
    • Other specialized fluids.
  24. The trace element most essential for oxygen transport in the blood is?
    Iron
  25. An enzyme may become inactive when?
    • 1) Body temperature rises excessively
    • 2) pH of body fluids becomes too acidic
  26. Which is the genetic code in our cells?
    DNA in Chromosomes
  27. The energy-transfer molecule formed in cell respiration is?
    ATP
  28. The waste product of cell respiration is?
    CO2
  29. The two elements that provide strength in bones and teethare?
    Ca and P
  30. A carbohydrate is made of which elements?
    • 1) Carbon
    • 2) Hydrogen
    • 3) Oxygen
  31. What are an energy source for polysaccharide?
    • 1) Glycogen
    • 2) Starch
    • 3) sucrose
  32. The molecule used to synthesize the hormones estrogen and testosterone is?
    Cholesterol
  33. Hydrogen bonds help maintain the three-dimensional shape of?
    Proteins and DNA
  34. The trace element that helps maintain the shape of some proteins by forming bonds is?
    Sulfur
  35. An organic molecule that is an important part of cell membranes is?
    Phospholip

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