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27 Cards in this Set
- Front
- Back
Electron Group Geometry
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Mutual repulsion among electron groups leading to a certain orientation of those groups depending on the number of groups involved.
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Molecular Geometry
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describes the 3-D geometry of a molecule, including the lone pair electrons.
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Hybrid orbitals
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Blending of two or more atomic orbitals to new energetically equivalent orbitals with optimzed geometry.
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Sigma Bond
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Covalent bond formed by end-to-end orbital overlap.
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Pi Bond
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Covalent bond formed by parallel orbital overlap.
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Ionic Bond
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Bond where one element gives up an electron and the other accepts
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Covalent Bonds
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Bonds where electrons are shared
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Polar Covalent
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Electrons are unequally shared
-: Electrons closer to one atom-: One end of bond is partially + other is partially – |
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Non-Polar Covalent
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Electrons are equally shared
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Hydrogen Bonds
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Week bonds usually between molecules. Bond between Hydrogen and a electronegative element.
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Describe how hydrogen bonds effect water's ability to regulate temperature.
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1. Hydrogen bonds require a lot energy to break.
2. the initial energy goes to breaking the bonds, so more is needed to heat the water. 3. Because our body has lots of water, we can absorb heat while maintaining our body temp. |
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Monomer of Protein
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Amino Acid
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Monomer of Carbohydrates
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Glucose
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Monomer of Lipids
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3 fatty acids + glycerol
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Monomer of Nucleic Acid
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Nucleotide
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Simple sugars
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Monoaccharides
Hexoses – C6 – Many are isomers – C6H12O6 Name Found Glucose – Everywhere Fructose – Fruit Galactose – Milk Pentose – C5 Ribose – RNA Deoxyribose – DNA |
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Double Sugars
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Disaccharides – C12H22O11
Sucrose – Glucose + Fructose Lactose – Glucose + Galactose Maltose – Glucose + Glucose |
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Polysaccharides
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Polymers of glucose
Glucose units in Amylose – Alpha Bond (α) – All Oxygen’s Facing Down Glucose units in Cellulose – Beta Bond (β) – All Oxygen’s Facing Up |
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Steroids
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Messenger to fats and proteins
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Essential Amino Acids
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Can’t be synthesized by the organism
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Non Essential Amino Acids
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Can be synthesized by the organism. animals can make it through molecules.
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Primary Structure
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Binding of amino acids to one another - Dehydration synthesis
Peptide bonds |
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Secondary Structure
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Result of Hydrogen Bonding between primary structures
Alpha Helix – Slinky Beta - Pleated Sheet - DNA structure –Wrong DNA means Wrong protein |
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Tertiary Structure
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Bonding between R Groups
Many Different Kinds of Bonds Sulfur – 2 amino acids have sulfu |
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Quaternary Structure
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Only in large Proteins that have only one peptide bond
The ability of a protein to function relies on its structure |
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fat soluble vitamins
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vitamins A, D, E and K
1. Fat soluble vitamins stay longer in your system because they get trapped in fat storage. These vitamins are usually absorbed in fat globules. |
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water soluble vitamins
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vitamins B and C.
4. The B-complex group is found in a variety of foods: cereal grains, meat, poultry, eggs, fish, milk, legumes and fresh vegetables. 5. Citrus fruits are good sources of vitamin C. 6. Water soluble vitamins are eliminated in the urine and therefore need to be replaced. 1. They function as coenzymes that help the body obtain energy from food. They also are important for normal appetite, good vision, healthy skin, healthy nervous system and red blood cell formation. |