Chapter 3 Flashcards
Organic compound
carbon based molecules
Carbons share electrons to bond with up to ___ different atoms
four
Hydro carbons
composed of hydrogen and carbon. won’t dissolve in aq’s sol’n
Isomers
same chemical formula but different structure
Functional groups definition
always have same atoms grouped together and added on to form completely different molecule
Functional groups:
- hydroxyl
- carboxyl
- carbonyl
- amino
- phosphate
- methyl
Hydrophilic
water loving. polar
Hydrophobic
water fearing. non polar
4 classes of biological molecules important to organisms
- carbohydrates
- proteins
- nuceic acids
- lipids
Dehydration reaction
monomers are linked together to form polymers, which removes h2o
Hydrolysis
polymers are broken apart by addition of h2o
2 monomers =
polymer
Macromolecule
Large biological molecules
Polysaccharides
polymere composed of thousands of monosaccharides, they’re macromolecules
Examples of polysaccharides
starch and glycogen. also used for energy storage
Cellulose
polymer of glucose and forms call walls. helps clean out our intestines
Chitin
polysaccharide used to build insect exoskeleton
Proteins are composed of..
different arrangements of a common set of just 20 amino acid monomers