Term
| why is water a good solvent |
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Definition
| because of it's polarity (partial charge) |
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Term
| what is unique about the solid state of water? |
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Definition
| it is less dense and floats on liquid water |
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Term
| what exists in all three states of matter? |
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Definition
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Term
| What type of molecules does water dissolve? |
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Definition
| Hydrophilic (water loving) |
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Term
| How do solutes dissolve in water? |
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Definition
| The partially positive hydrogen in water is attracted to the partially negative oxygen atoms of other water molecules. Known as hydrogen bonds |
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Term
| What is the most abundant molecule in the human body |
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Definition
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Term
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Definition
| Pair of Electrons that are shared on unequally by 2 atoms |
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Term
| what has an electronegativity and therefore a stronger "attraction" for the electrons than hydrogen |
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Definition
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Term
| Electrons spend more time with oxygen than hydrogen, so water is a... |
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Definition
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Term
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Definition
occurs between a slightly positive hydrogen atom of one molecule and a slightly negative atom of another molecule.
H2O molecules form H-bonds with each other
+H attracted to -O |
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Term
| water exists in all three states of water |
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Definition
liquid water
vapor
solid water(ice) |
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Term
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Definition
1. attraction to polar molecules
2. high-specific heat
3. high heat of vaporization
4. lower density of ice
5. high polarity |
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Term
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Definition
| attraction between H2O molecules caused by hydrogen bonding, surface tension |
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Term
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Definition
| attraction between H2O and other substances caused by hydrogen bonding, meniscus |
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Term
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Definition
a process that involves rearrangement of the molecular structure of a substance.
Atoms can be rearranged but not created or destroyed
.Bonds can be broken
AA > A+A+Energy
.Bonds can be formed
A+A+Energy > AA |
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Term
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Definition
| molecule that is going to be changed |
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Term
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Definition
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Term
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Definition
| tell you how many of each molecule participate in the reaction |
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Term
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Definition
| dissociates in water and increases hydrogen ions (H+) |
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Term
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Definition
| dissociates in water and increases hydroxide ions (OH-) |
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Term
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Definition
are substances that resist PH change
.consist of a weak acid and its conjugate base. |
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Term
| Dehydration synthesis reaction |
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Definition
removes water to build
links monomers together to make polymers |
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Term
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Definition
add water to break things apart
breaks bonds between polymers to release monomers |
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Term
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Definition
| are sugars or sugar polymers that provide short term energy. |
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Term
| what is composed of 1 carbon 2 hydrogen 1 oxygen |
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Definition
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Term
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Definition
are monomers of carbohydrates
examples are glucose in sports drinks
fructose found in fruit |
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Term
| which is shaped like a stop sign |
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Definition
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Term
| which is shaped like a house |
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Definition
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Term
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Definition
| are complex carbohydrates made of long chains of sugar units and polymers of monsaccharides |
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Term
| Starch, Glysogen and cellulose are part of what carbohydrates |
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Definition
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Term
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Definition
| potatoes and grains are major sources of starch in the human diet |
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Term
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Definition
| used by animals cells to store energy in muscles |
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Term
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Definition
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Term
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Definition
| is a polymer consisting of amino acid monomers |
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Term
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Definition
| determines the unique chemical properties of the amino acid |
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Term
| amino acids linked together by dehydration synthesis reaction forms... |
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Definition
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Term
| monomer of a nucleic acid are... |
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Definition
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Term
| what are the 3 parts of a nucleotide |
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Definition
1. five-carbon sugar
2. phosphate group
3. nitrogen containing base |
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Term
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Definition
Purines
-adenine (A)
-guanine (G)
Pyrimidine
-thymine (T)
-cytosine (C) |
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Term
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Definition
Purines
Adenine and Guanine
Pyrimidines
cytosine and Uracil |
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Term
| what type of sugars is found in RNA |
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Definition
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Term
| What type of sugar is found in DNA |
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Definition
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Term
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Definition
are Hydrophobic, unable to mix with water
-fewer molecules of oxygen, so they are nonpolar |
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Term
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Definition
1. Triglycerides
2. Phospolipids
3. steriods |
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