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Water & Macromolecules
what are the 2 types of bonds?
ionic and covalent
covalent bonds
Bonds created by sharing electrons with other atoms.
ionic bonds
Formed when one or more electrons are transferred from one atom to another
Water is a _____ molecule
polar
Properties of water
high specific heat
cohesion
adhesion
high surface tension
expands when freezing
universal solvent
solvent
dissolves other substances
solute
dissolves in a substance
What are the 4 macromolecules?
carbohydrates, lipids, proteins, nucleic acids
what are lipids monomers?
none (they are a monomer)
what are proteins monomers?
amino acids
what are carbohydrates monomers?
monosaccharides
what are nucleic acids monomers?
nucleotides
elements in lipids
C, H, O, sometimes P, way more C than o
elements in proteins
C, H, O, N, and sometimes S
elements in carboydrates
C, H, O
elements in nucleic acids
C, H, O, N, P
What is the ratio of carbon to hydrogen to oxygen in carbohydrates?
1:2:1
what are the uses of lipids?
store energy and make the cell membrane
What are the uses of carbohydrates?
energy storage and makes up the cell wall
What are the uses of nucleic acids?
RNA: make proteins
DNA: store genetic code
what are the uses of proteins?
build and breaks down chemicals
Note 
Flashcard (104)