Some insects obtain nutrition by poking a mouthpart into the stem of a plant.Once the insect's mouthpart is inserted,fluid from the plant is actually pushed through the digestive tract of the insect by pressure.The mouthpart of the insect has most likely penetrated the ________ of the plant.

Question

Quizplus · Accepted Answer

The phloem is responsible for transporting the sugar solution (sap) from the leaves to the rest of the plant, including the stem. Insects that obtain nutrition by poking a mouthpart into the stem of a plant are most likely accessing the sugar solution in the phloem. The xylem, companion cells, and endodermis are not involved in transporting sugars.

Some Insects Obtain Nutrition by Poking a Mouthpart into the Stem