Inorganic Compounds - compounds that do not contain Carbon, dominate natural world, exceptions are...
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Inorganic Compounds- compounds that do not contain Carbon, dominate natural world, exceptions are CO & CO2
Organic Compounds- contain carbon, divided into four main groups
BIOCHEMISTRYCarbon Based Molecules
Sec 2-3
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Carbon“The building blocks of life”
The elements C, H, O, N make up 96% of the human body
Carbon forms covalent bonds
the element can form up to four bonds
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The Vocabulary of Biochemistry
Monomers
a small molecule called a subunit that makes up the larger molecule
Polymers
A large molecule, macromolecule, made up of monomers bonded together
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Four Groups of Organic Compounds
1. Carbohydrates
2. L
3. Proteins
4. Nucleic Acids
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Carbohydrates made up of Carbon, Hydrogen, Oxygen usually in ratio of 1 : 2 : 1
.
Energy is stored in the chemical bonds.
When bonds are broken, energy is released.C6H12O6
GlucosGlucosee
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Important Facts to remember Important Facts to remember about Carbohydrates about Carbohydrates
Monomer- monosaccharide
Polymer- polysaccharide
Three most important polysaccharides
Starch
Glycogen
Cellulose
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StarchStarch
Branched chains of glucose
Made and stored by plants
Can be broken down by plants and animals
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Glycogen
Formed in animals
Stored in the liver
More highly branched
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CelluloseCellulose
Most abundant compound
Broken down by enzymes in ruminants
Makes up plant cell wall
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LipidsFats, Oils, and Cholesterol
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Fats and OilsContain more energy than carbohydrates
There are two different forms
Saturated fats- maximum number of bonds, solid at room temperature
Unsaturated fats- contains some double bonds, liquid at room temperature,
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Cholesterol
Part of cell membrane
Is the basis for many hormones such as testosterone and estrogen
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Protein
C H O N
Contains Nitrogen!!!
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Important facts to remember about protein
Monomer is amino acid
There are 20 amino acids
Amino acids are bonded by peptide bonds to form polypeptides.(polymer)
Proteins differ in the number, order, Proteins differ in the number, order, sequence, and form of amino acidssequence, and form of amino acids
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Two main roles: structural or functional
Proteins fold into 3-dimensional shapes– shape is important to their function
Channel in cell membrane
Builds tissue, bones, and muscle
Fight disease
Catalyze reactions
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Enzymes and Chemical Reactions
Sec 2.4, 2.5
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Chemical Reactions– process that changes one set of chemicals into another set of chemicals.
CO2 + H2O H2CO3
Reactants Products
Some reactions proceed in only a single direction,
others can proceed in both directions
Activation energy
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Activation energy – energy to begin a reaction
catalyst– a substance that speeds up rate by lowering a reactions activation energy, this increases the rate of the reaction!
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Enzymes– a protein that act as biological catalystbiological catalyst
The enzyme lowers the activation energy of a reaction, increasing the rate of the increasing the rate of the reaction dramatically within our bodiesreaction dramatically within our bodies
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Under normal body Under normal body conditions without conditions without
enzymes,enzymes, reactions would take reactions would take
years,years, instead of the seconds instead of the seconds that they take due to that they take due to enzymatic activity.enzymatic activity.
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More Important facts about Enzymes
Not used up in reaction
Sensitive to pH and temperature
Site specific
Binds at active site
Lock and key mechanism (enzyme is the key)
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Look at #4 on your enzyme worksheet , Look at #4 on your enzyme worksheet , fill in the blanks with this diagramfill in the blanks with this diagram
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Enzymes are baby bear in goldilocks, the pH must be near neutral
and the temperature must be perfect or the enzymes will not work!
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Nucleic Acids- DNA RNA Carbon, Hydrogen, Nitrogen,
Oxygen,Phosphorus