1)Define vascular bundle.... 2)Define aerenchyma and chlorenchyma tissue... 3) What is xylem?????
Answers
Answer:
1)ans: a strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
2) ans: Aerenchyma refers to spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root.
Chlorenchyma refers to Plant tissue consisting of parenchyma cells that contain chloroplasts and forming the basic green tissue of plant leaves and stems.
3)ans: xylem are plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.
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Answer:
1) A vascular bundle is a strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
2] (i) Chlorenchyma are parenchyma cells present in the mesophyll cells of the leaves which possess Chloroplast and hence the name.
(ii) Aerenchyma are the parenchyma cells present in floating water plants which have air vacuoles that give them buoyancy and help them float.
3] Xylem is the material in plants that carries water and food upwards from the root.
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