organic chemistry & biochemistry vocabulary words mrs. lee
TRANSCRIPT
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Organic Chemistry & Biochemistry Vocabulary
Words
Mrs. Lee
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Organic Compounds They are complex molecules made by organisms
containing carbon as their “backbone” & usually hydrogen.– Carbohydrates– Proteins– Lipids– Nucleic acids
The ability of carbon to bond to other elements, & to allow different arrangements of atoms contributes to the diversity of carbon compounds.
Carbon, hydrogen, nitrogen, oxygen, phosphorus & sulfur (CHNOPS) make up about 99% of the mass of all living organisms
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Organic Compounds (continued)
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Hydrocarbons
They are molecules composed of hydrogen & carbon.
They are important because they are the backbones of other organic compounds
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Hydrocarbons (continued)
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Amino Acids
They are the building blocks of proteins. There are 20 different amino acids but they
all have the same basic “backbone” structure.
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Amino Acids: (continued)
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Proteins They are long chains of
amino acid units that are the main molecules from which living things are constructed
They have many functions in the body:– Structural components
– Transport aids
– Enzymes
– Cell signals
– Etc.
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Proteins (continued)
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Proteins (continued)
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Lipids They are organic molecules used to form
cellular & organelle membranes, the sheaths surrounding nerve fibers, & certain hormones
They include fats, a long-term energy source They are insoluable in water (repel water) Examples: oils, butter, lard, etc. They are not as easily metabolized as
carbohydrates, yet they are a more effective means of storage. Example: 1 gram of fat provides 2 times the energy of 1 gram of carbohydrate
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Lipids (continued)
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Carbohydrates The primary energy source for living things Composed of: carbon, hydrogen, & oxygen Serve as energy sources & provide structural
support, as in the cell wall of plants Member of a large class of chemical compounds
that includes sugars, starches, cellulose & related compounds
They are produced naturally by green plants from carbon dioxide & water
As essential nutrients, they are the human body’s main source of both quick & sustained energy
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Carbohydrates: i.e. -- Glucose
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Starch
It plays a vital role in the biochemistry of both plants & animals
It is made in green plants by photosynthesis & is one of the main forms in which plants store food
Animals obtain starch from plants & store it as glycogen
Both plants & animals convert starch to glucose when energy is needed
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Starch (continued): i.e. --Amylose
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Nucleic Acids
They are large molecules comprised of nucleotides that carry the genetic code
They are found in the nucleus of the cell Specifically they are:
– DNA (deoxyribonucleic acid)
– RNA (ribonucleic acid)
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Nucleic Acids (continued): DNA
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Nucleic Acids (continued): RNA
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Nucleotide The unit that makes up nucleic acid Contains a nitrogen base, a phosphate group & a
carbohydrate (sugar) molecule The 4 possible nucleotide bases for DNA are:
– Adenine– Guanine– Cytosine– Thymine
The 4 possible nucleotide bases for RNA are:– Adenine– Guanine– Cytosine– Uracil
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Nucleotide (continued)
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Chemical Formula
A combination of chemical symbols & numbers to represent a substance
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Chemical Formula (continued)1) Butane C4H10 Used in portable lighters, home
heating fuel, portable stoves & heaters
2) Ethane C2H6 Used to make ethyl alcohol, acetic acid, & other chemicals & also used as a refrigerant
3) Methane CH4 Used as a raw material for many synthetic products & as a major part of natural gas
4) Propane C3H8 Use as a “bottled gas” for home heating, portable stoves & heaters & also as a refrigerant
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Structural Formula
A formula that indicates the location of the atoms, groups, or ions relative to one another in a molecule & that indicates the number & location of chemical bonds
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Structural Formula (continued)
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The End
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Bibliography http://www.jp3d.net/school/drawings/
Organic_Compounds.gif http://www.icknield.beds.sch.uk/hydrocarbons.htm http://www.ebi.ac.uk/2can/biology/molecules_small.html http://www.thesolutionsite.com/lesson/20054 http://www.lampstras.k12.pa.us/hschool/teachers/pitts
/bio/un7/oldun3 http://ww
w.cs.columbia.edu/~cleslie/cs4761/lectures-spr03.html http://en.wikipedia.org/wiki/Carbohydrate http://www.umanitoba.ca/Biology/lab2/biolab2_2.html http://www.l-spioneers.org/hschool/teachers/pitts/bio/un7/
old/un3/starch.gif
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Bibliography (continued) http://bio.winona.edu/bates/Bio241/Chapter_Outline_03.htm http://www.edzone.net/fulton/home/hstaff/salogarg/chem
/propylene/structuresformalasandpictures.html http://www.osha.gov/dts/sltc/methods/partial/pv2137/
pv2137.html http://www.tokyo-med.ac.jp/genet/cdi.htm http://www.acmecompany.com/Pages/stock_science.html http://academic.mu.edu/phys/buxtoni/DW/chembasislife_files http://www.angelfire.com/az/smallandcute/animal.html