Question

write the function and type of tendrils

Answer 1

A tendril is a modified stem, leaf, or petiole. They are typically more round than flat and function to hold the plant up as it grows. Their movement is caused by differential growth on the part of the tendril which is not in contact with anything. Where the tendril comes in contact with a fence, trellis, or almost anything else, the growth and elongation of cells in that area are slowed. The cells not in contact with something continue normal growth and elongation. The effect is that the tendril grows around whatever it touches.

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Answer 2

 a tendril is a specialized stem, leaves or petiole with a threadlike shape that is used by climbing plants for support, attachment and cellular invasion by parasitic plants, generally by twining around suitable hosts found by touch. They do not have a lamina or blade, but they can photosynthesis. They can be formed from modified shoots, modified leaves, or auxiliary branches and are sensitive to airborne chemicals, often determining the direction of growth, as in species of Cuscuta.