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Water is the universal solvent (dissolves chemicals).

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Water is the universal solvent (dissolves chemicals). Chemicals added to water are called: _____ The chemical/water mixture is called a: _____ – PowerPoint PPT presentation

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Title: Water is the universal solvent (dissolves chemicals).


1
WATER
  • Water is the universal solvent (dissolves
    chemicals).
  • Chemicals added to water are called
    _______________________
  • The chemical/water mixture is called a
    ____________________
  • ________________ chemicals dissolve well or mix
    with water.
  • ________________chemicals do not mix well with
    water.
  • Water is an ideal ________________ medium.
  • Blanketing power allows molecules in water to
    move around and be cushioned from one another.
    Many molecules dissolve readily in water
  • Water has a high heat capacity and a high heat of
    vaporization.
  • It is easily able to absorb heat from reactions
    so that the overall _________________ of solution
    doesnt change.
  • Water needs a high temperature to change from a
    liquid to gas, so remains a liquid thru wide
    temperature ranges.
  • Water is used for ________________ of moving
    parts of the body.

2
SALTS
  • Mineral compounds that have _________ bonds.
  • Principle form of __________ that enter and are
    stored in the body.
  • When salts are added to water they immediately
    _____________ (divide into separate ions).
  • Salts in ionic form are called ___________________
    ____-substances that have ability to transmit an
    electrical charge.
  • Na, K, Ca2, Cl-

3
Acids and Bases
  • ___________- ionically bonded substances that
    when added to water freely release hydrogen ions
    (H).
  • Called H donors or proton donors
  • ___________ Ionically bonded substances that when
    added to water release a hydroxyl ion (OH-).
  • Called proton acceptors
  • H and OH- combine to form ____________

4
The pH Scale
  • Acids and Bases are also electrolytes because
    they can transmit electricity when ionized in
    water.
  • Ranges from 1-14.
  • Lower numbers are the most ___________, higher
    numbers are more ____________.
  • pH of ________ is neutral.
  • pH of blood is __________.

5
Buffers
  • A substance that minimizes the change of the
    _________ of a solution when an acid or base is
    added to the solution.
  • Weak acids and bases that dont completely ionize
    in water.
  • By not allowing excessive hydrogen or hydroxyl
    ions to accumulate, buffers help cell maintain a
    _________ pH.

6
Organic Molecules
  • Molecules that contain carbon.
  • Carbon can exist in a variety of forms (chains,
    rings, branches), so various structures can be
    built with it as it strives to form bonds with
    other atoms to become stable.
  • Divided into 4 groups
  • _____________________
  • Glycogen, Ribose
  • ____________________
  • Triglycerides, Phospholipids, Steroids,
    Prostaglandins
  • _____________________
  • Globular, Fibrous
  • _____________________
  • DNA, RNA, Adenosine triphosphate (ATP)

7
Carbohydrates
  • Used for energy, storage of energy, and cellular
    structures.
  • Starch, table sugar, cellulose
  • Composed of ___, ___, and ___ (water-containing
    carbon)
  • Simple Sugars-____________________.
  • Glucose and Fructose
  • ________________- when two monosaccharides are
    joined together in synthesis reaction.
  • _________________- combinations of many
    monosaccharides.
  • Glycogen and cellulose

8
Carbohydrate terms
  • ________________ sugar with 6 carbon atoms
  • ________________ sugar with 5 carbon atoms
  • ________________ synthesis is the
    creation/removal of water during a reaction
  • ________________ is the breaking down of complex
    molecules into simpler ones by adding water
  • ________________- when a macromolecule is formed
    out of a carbohydrate attached to a protein.

9
Lipids
  • Used for ____________ and stored in ______.
  • 4 classes of Lipids
  • Neutral fats, phospholipids, steroids,
    eicosinoids
  • Also made of C, H, O (and sometimes P), but their
    __ content is much lower than the amount in carbs.

10
  • Also called triglycerides or fats.
  • Contains three ________ acids and a ___________
    molecule.
  • Fatty acids are chains of carbon atoms with 1 or
    2 hydrogen atoms attached
  • Glycerol is a modified, 3 carbon sugar
  • ________________ fatty acids- all bonds in the
    hydrocarbon chain are single bonds.
  • _________________fatty acids- when there are some
    double bonds between the carbon and hydrogen
    atoms.
  • __________________________- macromolecule
    composed of proteins and lipids

NEUTRAL FATS
11
  • Have a _______________ backbone like
    triglycerides
  • In place of 3rd fatty acid is a phosphate group
    (PO4) attached to a nitrogen containing compound.
  • Have a lipid bilayer when placed in water.
  • ________________ heads are facing water
  • Phosphate groups
  • _______________ tails line up with one another.
  • Fatty acid side

PHOSPHOLIPIDS
12
  • Four interlocking hydrocarbon rings with very
    little oxygen.
  • Are hydrophobic.
  • Basic _______________ ring structure that forms
    different steroids
  • Lipids formed from a 20-carbon fatty acid and
    ring structure. (____________ structure)
  • Important for mediation of complex processes in
    the body (inflammation, platelet function,
    bronchoconstriction, and mucus production

STEROIDS
EICOSANOIDS
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