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Biology- A level AQA
Biological Molecules
1.9 Water
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Cards (15)
Properties
metabolite
solvent
high
heat
capacity
large
latent
heat of vaporisation
strong
cohesion
Metabolite
component of
metabolic reactions
including
condensation
and
hydrolysis
Solvent
Able to
dissolve
a
wide range
of
substances
High heat capacity
Water's ability to
absorb
and
retain
heat
Large
latent heat
of vaporisation
Provides a
cooling
effect with
little loss
of
water
through
evaporation
Strong cohesion
produces
surface tension highest cohesion
of any
non metal
Roles of water
solvent
transport
medium
coolant
habitat
Solvent properties
good at dissolving
ions
and
polar
molecules
able to dissolve a wide range of substances
Solvent
examples
glucose dissolves in water and is stored in the vacuole
trees and plants take up minerals
bacteria cytosol is mainly water
Transport medium properties
substances dissolve
high cohesion
transport medium examples
xylem
Coolant properties
high temp stability
affected by temp
coolant examples
frogs stay cool in summer and warm in winter
Habitat
properties
ice is
less
dense, it
floats
ice is insulating
Habitat examples
polar bears and seals have habitats
blue whales can still swim