3.1.1 Monomers and Polymers Flashcards
Evidence for evolution
Anything that supports the theory of evolution. We all have similar biochemistry, all carbon based organisms that interact similarly (have DNA/ RNA for genetic material) therefore giving us indirect evidence for evolution.
Theory of evolution
the idea that we all descended from 1 or a few common ancestors and have diversed over time
Polymer
a large and complex units, made up of long chains monomers joined end to end
examples- polysaccharides, proteins
Monomer
small, simple unit make polymers
examples - amino acids, monosaccharides, nucleotides
Condensation Reaction
creates a chemical bond between monomers and releases a molecule of H2O and creating a polymer
Hydrolysis Reaction
breaks a chemical bond between 2 monomers with a molecule of water
Monosaccharide
carbohydrate monomers
example- glucose, fructose, galactose
Glucose
Glucose has two isomers:
a-glucose - hydroxyl group on bottom
B-glucose - hydroxyl group on top
Isomer
molecules with the same molecular formula but atoms are connected differently (different structural formula)
Condensation of 2 monosaccharides
forms a glycosidic bond
creates a disaccharide (and water)
Glucose + glucose condensation
Maltose disaccharide
Glucose + fructose condensation
fructose disaccharide
Glucose + Galactose condensation
lactose disaccharide
Polysaccharide
made from a condensation of 2+ monosaccharide molecules