CARBOHYDRATES Flashcards
(24 cards)
carbohydrates
contain h, o, c
in every carbon, there are 2H, and 1 O.
it is a source and store of energy,
it is a structure unit.
monosaacharide
source of energy
soluble.
disaacharide
soluble
maltose
sucrose-non reducing
lactose
maltose
alpha+alpha
surcose
alpha+furcose
lactose
b glactose+alpha
celobose
beta+beta
how do these join
join by condensation reaction, which forms a glycosidic bonds
glycodsic bonds
joins carbohydrates and forms glycosidic bond
disaacharides broken to
monosaccharides, by a hydrolysis reaction.
alpha glucose
energy source
component of starch, and glycogen
beta glucose
energy source
component of celluose
ribose
component of RNA, ATP and NAD.
deoyribose
component of DNA
polysaacharides
polymers of monosaccharides.
join a lot to form store of energy.
plants=starch
humans-glycogen
glycogen
compact, so dosent take space.
branced-easily snipped by hydrolysis.
1-4 bonded chains, less tendency to coil.
starch
amylose or amlypepticin
amylose
compact
unbtranched
coils to spiral shape.
h2 bonding
hydroxyl groups insided making it less soluble.
amylopepticin
1-6 glycosidic bonds.
also coils, h2 bonding
branches
not soluble
celluose
found in plants (cell wall).
tough
insoluble
bonded thrugh condesation to make glycodsic bonds.
dosent spiral like alpha, straight lie by side.
h2 bonding make it stronger.
why dosent celluose spira;
o, oh inverted in beta.
microfibrils
lots of chains bounded
bundle of microfibrils
cell wall
structure and function of plant cell walls
micro/microfibrils have high tensile strength-prevents from bursting
macro-run in all directions.
space in macro to allow h20 and mineral ions to move. PERMEABLE
