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3459904
the molecules of life
Description
Mind Map on the molecules of life, created by Salma Saleem on 14/09/2015.
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salma.saleem97@gmail.com
umsalma@gmail.com emalku1971@yahoo.com
umsalma@gmail.com
emalku1971@yahoo.com
Mind Map by
Salma Saleem
, updated more than 1 year ago
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Created by
Salma Saleem
about 9 years ago
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Resource summary
the molecules of life
macromolecules
lipids
carbohydrates
works as fuel and building materials
monosaccharides are the simplest form of carbohydrates
it multiple of CH2O known as glucose
1. two monomers bond by covalent bond called glycosidic lnkage called disaccharides
most known as sucrose or table sugar (glucose +fructose)
2. more than two known as polysaccharides
2. structural polysaccharides
1. cellulose is a tough wall plant cell
cellulose is differ from starch by its glycosidic linkage
based on two rings
alpha
starch (a) is largely halical
enzymes that digest starch by hydrolyzing (a) linkage cant hydrolyze (b) in cellulose
these cellulose pass through humon digestive track called insoluble fiber
beta
cellulose (b) is straight and unbrunched
some microbes use enzymes to digest cellulose
many herbivores from cow to termites have symbiotic relationship with these microbes
2.chitin
found in exoskeleton of arthropods
provide structural support for the fungi cell wall
1. storage of polysaccharides
1. starch storage polysaccharides in plants
simplest form called amylose
2. glycogen a storage polysaccharides in animals
storage in liver and muscles
hydrolysis in these cells release glucose when suger increase
classified by
the location of carbonyl group (adlose and ketose)
the number of carbons in carbon skeleton
nucleic acid
made of polymers
polymers made of monemers
have two chemical reaction
dehydration which combined two monemers by loss of water molecules
hydrolysis wich break dawn two monemers by adding water molecule
these reaction is catalyzed by enzymes
arrangement = the sequence of bulding units
monomolecules
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