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Molec Cell- Molecules
Terms in this set (30)
polysaccharides, glycogen, and starch
fats and membrane lipids
4 major families of organic molecules
2. fats and membrane lipids
4. nucleic acids
Saccharides are created via _____ reactions.
polysaccharides are broken down via ____ reactions.
Fatty Acid Structure
hydrophillic carboxylix acid head with a hydrophobic hydrocarbon tail
glycerol and 3 fatty acids
- don't have any "kinks"
- tend to form aggregates and deposits inside blood vessels
- fatty acid tails have carbon-carbon double bonds or "kinks"
do not form solid aggregated
behave like saturated fatty acids and tend to aggregate. Major contributors to coronary heart disease
a cis unsaturated fatty acid that comprises up to 80% of olive oil
the isomerization of a double-bond from cis to trans
The isomerization of oleic acid results in
a trans unsaturated fatty acid and a major trans fat found in partially hydrogenated vegetable oils
How do you make a phospholipid?
1. link 2 fatty acids to the glycerol and add a phosphoric acid to the glycerol via condensation reactions
2. link the phosphate group to a small hydrophilic group
Why do the phospholipids in biological membranes typically contain one saturated and one unsaturated fatty acid?
-the unsaturated fatty acids add strength because they do not form solid aggregates like the saturated fatty acids do
Give the structure of ATP
Describe how ADP goes to ATP
Describe how ATP goes to ADP
Most proteins and many RNA molecules fold into 3-dimensional conformations that are stabilized by a number of ____________________.
weak, intramolecular noncovalent interactions
What can disrupt the three dimensional shapes of proteins and many RNA molecules and how?
Heat and denaturants can disrupt the intramolecular non-covalent interactions of proteins and RNA molecules
Cyclic adenosine monophosphate
What is cAMP involved in?
used by cells as a messanger in both intracellular and intercellular signaling
Find cAMP in this image.
Give an example of a how a macromolecular complex might form.
A ribosome is a macromolecular complex that from when proteins and RNA molecules combine and noncovalent intramolecular bonds change their shape and hold them together in a complex.
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