Chemical composition of a plant Flashcards
(40 cards)
what are the three functions of a molecule
metabolic, structural, informational
what are the 4 primary metabolites
carbohydrate, lipid, nucleic acid, protein
from what is made carbohydrate
glucose and its isomer
what are the three types of carbohydrate
monosaccharides, disaccharides, polysaccharides
what are the three function of a carbohydrate
transport of energy, storage of energy, cell wall
give two example of more complex carbohydrate mage of chain of monosaccharide
starch, cellulose
true or false. monosaccharide are use during respiration
true
what are the two disaccharide we saw
sucrose, lactose
in which form the plants store starch
fructans
what is the role of fructans
plant more tolerant to freezing
what is the polysaccharide that form the cell wall of fungi
chitin
from what are composed the lipids
long hydrocarbon chain. C, H, O
what are the three groups of lipids
fats, steroids, phospholipids
true are false. lipids do not form polymers
true. big molecule made of many subunit.
where does lipids store oils
in cytoplasm of seeds, roots and fruits
what are the two structural functions of lipids
component of cell membrane, protection and water proofing
which group of lipids is responsable of the cell membrane structure
phospholipids
what are the two part of the phospholipid bilayer
hydrophobic inner lipids and hydrophilic phosphate group
what is the function of steroid in plant
stabilize phospholipid tail of cell membrane
what is the most abundant sterol in plant
B-sterol
what is the role of cutting, Suberin, waxes
protect outer surface from water loss
from what are made protein
amino acids
what is the primary structure of proteins
polypeptides
what is the structural function of protein
cytoskeleton
