cava bio 204 s1.d18 2.07 Water
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Living things are composed mostly of [...]. | Living things are composed mostly of water.
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| Every cell of a living thing is like a [...]-filled factory, providing the perfect medium for all life processes to take place. | Every cell of a living thing is like a water-filled factory, providing the perfect medium for all life processes to take place.
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| materials in living things are circulated and transported by [...]-based fluids. | materials in living things are circulated and transported by water-based fluids.
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| Water is a [...] molecule; that means it has a partially negative end and a partially positive end. | Water is a polar molecule; that means it has a partially negative end and a partially positive end.
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| Water molecules are attracted to each other through what we call [...] 'bonds'; areas where the partially positive hydrogens of one molecule are attracted to the partially negative parts of another molecule. | Water molecules are attracted to each other through what we call hydrogen 'bonds'; areas where the partially positive hydrogens of one molecule are attracted to the partially negative parts of another molecule.
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| [...] 'bonds' are NOT covalent or ionic bonds... They aren't actually bonds at all; the name is misleading. | Hydrogen 'bonds' are NOT covalent or ionic bonds... They aren't actually bonds at all; the name is misleading.
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| [...] = (Co- ; together + hesion; sticking) Sticking together | Cohesion = (Co- ; together + hesion; sticking) Sticking together
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| [...] = (Ad -; to + hesion; sticking) sticking to something else. | Adhesion = (Ad -; to + hesion; sticking) sticking to something else.
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| [-sion] = sticking together [-sion] = sticking to something else | Cohesion = sticking together
Adhesion = sticking to something else
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| The hydrogen 'bonds' that water forms cause water molecules to stick to each other... this is called [-sion] | The hydrogen 'bonds' that water forms cause water molecules to stick to each other... this is called cohesion
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| The hydrogen 'bonds' that water forms cause water molecules to stick to other polar molecules... this is called [-sion] | The hydrogen 'bonds' that water forms cause water molecules to stick to other polar molecules... this is called adhesion
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| The surface tension that allows bugs to walk on top of water is created by the cohesion formed from [...] between water molecules. | The surface tension that allows bugs to walk on top of water is created by the cohesion formed from hydrogen 'bonds' between water molecules.
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| A [...] is a material that causes another to dissolve within it to make a solution. The dissolved material is called a [...] . | A solvent is a material that causes another to dissolve within it to make a solution. The dissolved material is called a solute .
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| Aqueous = within [...] (aqua) | Aqueous = within water (aqua)
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| An [-ous] environment is any environment within water (aqua). | An aqueous environment is any environment within water (aqua).
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| Water does NOT dissolve non-[...] substances such as oils and lipids. | Water does NOT dissolve non-polar substances such as oils and lipids.
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| A plant cell stores excess water in a structure called a central [...] (little-cavity), which releases water as needed. | A plant cell stores excess water in a structure called a central vacuole (little-cavity), which releases water as needed.
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| The desert-dwelling kangaroo rat can go [-s] without drinking water; it reabsorbs water from its own organs and extracts water from the foods it eats. | The desert-dwelling kangaroo rat can go months without drinking water; it reabsorbs water from its own organs and extracts water from the foods it eats.
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