The diffusion of molecules into a cell can be modelled by using agar cubes infused with phenolphthalein indicator and soaked in sodium hydroxide (NaOH). Phenolphthalein turns a pink color when in the presence of a base. As the NaOH diffuses into the agar, the phenolphthalein changes to pink and thus indicates how far the NaOH has diffused into the agar. By cuttting an agar block into cubes and various sizes, it is possible to show the effect of cell size on diffusion
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Biology, 22.06.2019 01:00, nahimo
In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low
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Biology, 22.06.2019 03:00, saltytaetae
Match with o for organic and i for inorganic for each compound
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Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus
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The diffusion of molecules into a cell can be modelled by using agar cubes infused with phenolphthal...
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