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Describe how sucrose leads to an action potential in the sensory neurone linked with a chemoreceptor cell in V. atalanta.
Biology 9700 · AS & A Level · Control and coordination in mammals
Control and coordination in mammals — practice question
Humans sense the sweet taste of sucrose sugar through chemoreceptor cells in taste buds on the tongue. In the red admiral butterfly, Vanessa atalanta, sucrose is detected by chemoreceptor cells found on the antennae and on the tarsi (feet). The way the chemoreceptors in V. atalanta work is like the system in humans. Fig. 10.1 shows where the chemoreceptor cells are located on V. atalanta.