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Worksheetsbiomolecules
Total questions: 20
Worksheet time: 14mins
water is a polar molecule which means that
the electrons are shared unequally within the bonds that hold a water molecule together.
the electrons are spilt between them equally, within the hydrogen bond.
the molecules are molecule is one whose charge distribution is spherically symmetric when averaged over time
which type of bond forms between the water molecules
covalent
electromolecular
hydrogen
oxygen
which of these is true about the ability of water molecules to hydrogen bond.
it's an excellent solvent
has a high latent heat of evapouration
it has a high heat capaticy
its a low latent heat evapouration
what is the technical name for carbohydrates
(a)
explain why we feel cooler when we sweat.
water is being melted
water is running down our bodies
the evaporation of water from our skin’s surface takes a lot of heat energy with it
How is a disaccharide formed?
covalent bond
condensation reaction
two monosacchrides together
two polysacchrides together
what happens during a condensation reaction?
glycosidic bond is formed
monosaccharides are formed
water is removed from a hydroxyl group
a hydroysis reaction occurs
what type of sugar are carbohydrates?
(a)
which type of glucose is it when the hydrogen atom is above the carbon
(a)
what type of glucose is it when the hydrogen is below the carbon
(a)
what are examples of monoscacchrides?
deoxyribose
ribose
glucose
fructose
galactose
what is not an example of disaccharides?
sucrose
galactose
lactose
maltose
what's not an example of polysacchrides?
cellulose
glycogen
peptideglocan
pepper
what are three different types of lipids?
triglycerides
biglycerides
phospholipids
chloesterol
how many fatty acid chain does triglyceride contain
2
3
4
8
whats the formation of an ester bond?
condesation reaction
hydrogen bond
hydrolysis reaction
covalent bond
what is the function of chloresterol?
cell membrane rigid
pushes hydrophilic tails closer
an energy store
whats the function of a triglyceride
to create more phospholipds
an energy store
make cell wall rigid
form ester bonds
how are proteins joined together?
hydrophilic bilayer
peptide bonds
hydrogen bonds
biphosphate bonds
how nucleic acid formed by
phosphodiester bonds
peptide bonds
hydrogen bonds
