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metabolism
reactants and products of chemical reactions dissolve in water
nutrition
photosynthesis and digestion occur in aqueous solutions (water)
growth
cytoplasm is aqueous, by gaining water it can grow
reproduction
sperm swim through the water, fetus supported by water in the uterus
movement
aquatic organisms swim, blood and sap transported through it
response to stimuli
nerve impulses caused by dissolved sodium and potassium ions
excretion
urine is an aqueous solution of waster product, sweat
homeostasis
blood plasma and tissue fluid form stable environment
buoyancy
solids float in fluids if density is lower
viscosity
resistance to flow, result of cohesion
thermal conductivity
ability to conduct heat
specific heat capacity
how much heat is needed to change the temperature of the water (more dense, high heat capacity, more stable environment)
capillary action
movement of water within narrow spaces against gravity due to adhesion and cohesion
hydrogen bonds
weak attractions between water molecules that contribute to its unique properties.
