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54 Cards in this Set
- Front
- Back
1.) Carbohydrates 2.) Lipids 3.) Amino Acids+ Proteins 4.) Nucleotids + Nucleic Acid |
4 major groups of carbon compounds |
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Carbohydrates |
Include both sugars and polymers of sugars |
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Either Polyhydroxy Aldehydes or Ketones |
What are sugars? |
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Monosaccharides |
Generally have the formula (CH2O)n * where n= 3-7 |
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Sugars |
Form rings in solution |
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Aldoses have a Aldehyde group and Ketoses have a Ketone group |
What groups do Aldose and Ketoses belong to? |
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Dehydration Reaction |
A type of condensation reaction |
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Removes a water molecule, forms a new bond between the sugar monomers and continue adding monosaccharides to form a polysaccharide |
What happens in a Dehydration reaction? |
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Polysaccharides |
Large molecules formed from many similar or identical building blocks linked by covalent bonds |
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No, but some prokaryotes and fungi can as can some animals that carry cellulose-digesting prokaryotes in their digestive tracts |
Can we digest cellulose? |
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Glycosidic linkages |
What are the monomers in polysaccharides linked by? |
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Starch and Glycogen |
What are the storage polysaccharides? |
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Cellulose |
Example of structural polysaccharides |
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Starch |
1-4 linkage of alpha glucose monomers |
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Cellulose |
1-4 linkage of beta glucose monomers |
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Starch |
A plant polysaccharide |
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Glycogen |
An animal polysaccharide |
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Glycogen |
Used in liver and muscle cells and one of the 1st sources of energy used |
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Cellulose |
Made primarily by plants and one of the major components of wood |
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Adds a water molecule by breaking a bond, starch can be broken down to glucose and used as energy or sources of building materials through hydrolysis--> it is the reverse of dehydration (hydro=water, lysis=splitting) |
How does Hydrolysis reaction work? |
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Lipids |
-NOT a polymer -Hydrophobic from long carbon chains -Synthezised via a dehydration reaction |
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Fats, Phospholipids, and Sterlos |
3 types of Lipids |
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Cellulose, Plants produce 100 billion tons per year. |
Most abundant organic compound on earth |
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Triacylglcerols, which are separated by hydrolysis |
Three fatty acids+ one glycerol |
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Aldose |
what group is glucose an example of? |
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Ketose |
What group is fructose an example of? |
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Ester linkages, when they are synthesized from glycerol and fatty acids by a dehydration reaction. |
What are fats molecules joined by? |
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Unsaturated fats |
Fats without double bonds |
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1.) double bonds change shape of lipid molecules 2.) fats with double bonds are not able to pack as closely together 3.) Fats with double bonds are less likely to solidify |
Why are saturated fats different from unsaturated? |
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A Dehydration reaction |
How are fats synthesized? |
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A hydrolysis reaction |
How are fats broken down? |
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They are structurally similar to fat but only have two fatty acids attached to glycerol. |
How do phospholipids differ from fats? |
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A phosphate which is negatively charged. |
What is the third position on the phospholipid occupied by? |
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Hydrophilic- phosphate Hydrophobic- hydrocarbons * this is what causes phospholipids to assemble into bilayers to help form the membranes |
What are phosphate groups and what are hydrocarbon chains? |
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Fluid |
Are unsaturated fats fluid or viscous? |
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Viscous |
Are saturated fats fluid or viscous? |
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Sterols |
Lipids that typically have carbon skeletons with four fused rings |
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Sterols |
Not composed of fatty acids+ glycerol but still considered a lipid because they are hydrophobic |
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A sterol |
Cholesterol is an example of this |
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Proteins |
Made from carboxylic acid domains (amino acids) |
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1.) Amino Group 2.) Carboxylic Acid group 3.) Hydrogen 4.) A variable group, denoted as R |
Each amino acid has a central carbon with four things attached to it |
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Polypeptides, resulting in peptide bond/ linkages |
What do amino acids form when they are joined together via dehydration reaction? |
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Primary structure |
The amino acid sequence of the protein found from the DNA, hard to determine from this structure. |
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Secondary Structure |
Coiled or folded patterns that form in segments of some proteins -NOT the side chains |
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Secondary Structure |
The result of the hydrogen bonds between the repeating parts of the polypeptide backbone |
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Tertiary Structure |
Stabilized by variety of chemical bonds and have disulfide bridges |
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Disulfide Bridges |
Strongest forces maintaining the tertiary shape of polypeptides |
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Quaternary Structure |
When a protein is made of more than one polypeptide chain |
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Mad Cow disease |
Result from a misfolded protein, also known as "prion disease" |
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Structural isomers |
Glucose and fructose are example of this type of structure |
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Covalent Bond |
Nucleotides in a single DNA chain are held together by this between phosphate group of one nucleotide and the sugar group of the next nucleotide |
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A phosphate+ a sugar + a nitrogenous base |
What is a nucleotide consist of? |
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The 3' end |
What end are nucleotides added to on the polynucleotide chain? |
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RNA |
Single strand that has base pairing |