trouble areas

cohesion

water sticks to water

adhesion

water sticks to other substances

water

polar molecule

polar

unequal sharing of molecules

h2o

polar

ice

less dense than liquid water

how many single covalent bonds does h2o have

2 single covalent bonds because the electrons of 2 hydrogen are shared

ionic bond

electrons transferred. gives electron

covalent bond

electrons shared(co=share)

anion

gains electron (negative)

cation

loses electron (positive)

carbohydrates

have monosaccharides, disaccharides, and polysaccharides

monosaccharides

glucose and fructose

disaccharides

lactose and sucrose

polysaccharides

starch, glycogen, cellulose, chitin

proteins transport

hemoglobin

phospholipids

main cell membrane component

proteins monomer

amino acids

proteins polymer

polypeptide

carbohydrates monomer

monosaccharides

carbohydrates polymer

polysaccharides

nucleic acids monomer

nucleotide

nucleic acids polymer

dna or rna

monomer

building block

polymer

many building blocks joined together

nonpolar

equal sharing of electrons

inductive reasoning

specific observation to general conclusion

deductive reasoning

general rule to specific prediction

isotopes

Same element, same protons, different neutrons

triglycerides

lipids polymer

fatty acids

lipids monomer

a in ATCG

adenine

t in ATCG

thymine

c in ATCG

cytosine

g in ATCG

guanine

actin and myosin

contractile proteins