An aphid, such as a greenfly, uses a tubular mouthpart called a stylet to feed on nutrients in the plant.
It inserts the stylet through the surface of a stem or leaf.
When a stylet is cut near the aphid’s head, leaving the stylet in the plant, a liquid with a low water potential continues to flow out of the plant.
Which statement explains this?
The stylet is in a phloem sieve tube element in which there is a high concentration of solutes.
2 )
The stylet is in a phloem sieve tube element in which there is a low concentration of solutes.
3 )
The stylet is in a xylem vessel element in which there is a high concentration of solutes.
4 )
The stylet is in a xylem vessel element in which there is a low concentration of solutes.
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