Extra questions of plant tissue in reason based with answer
Answers
1. How are plant tissues classified according to their functions?
Plant tissues are divided into growth (embryonic) tissues, supporting, filling and photosynthetic tissues (ground tissues), conducting (vascular) tissues and covering (dermal) tissues.
Embryonic tissues: primary meristems; secondary meristems. Supporting tissues: collenchyma; sclerenchyma. Filling and photosynthetic tissues: photosynthetic parenchyma; storage parenchyma. Conducting tissues: xylem; phloem. Covering tissues: epidermis; periderm.
2. What are the growth tissues of plants? How are they classified and where can they be found?The growth tissues of the plants are meristems. Meristems are the tissues that produce plant growth and are the origin of all other tissues. They are formed of undifferentiated cells with an intense cell division rate. Meristems are classified as primary meristems and secondary meristems.
Primary meristems are found at the apex of the stem, in the lateral buds of the stem, at the base and the tips of shoots and within the root cap. Primary meristems are responsible for the primary growth (lengthening) of the plant.
Secondary meristems make the plant grow in thickness (secondary growth) and are formed by tissues that thicken the stem: cambium and phellogen (cork cambium).
4. What are apical meristems? Which type of plant growth do this meristems promote?Apical meristems are primary meristems found at the apex of the stem and in the tips of shoots and roots.
Apical meristems are responsible for the primary growth of plants.
3. What is the difference between lateral and apical buds in plants?Lateral buds are portions of meristematic tissue located at the base of the shoots. Apical buds are portions of meristematic tissue situated at the tip of the stem and shoots.
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