HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gives support during rapidly growing plant parts like stems and leafs stalks.
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Gives support after the plant growth finish to parts like stems and leafs stalks.
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Either A or B
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None of the above
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Detailed explanation-1: -They provide mechanical support to the growing parts of the plants. Collenchyma resists the bending of stems and tearing out of young leaves due to environmental factors. It also helps in the synthesis of food materials.
Detailed explanation-2: -Collenchyma tissue is composed by elongated living cells of uneven primary thick walls, which possess hemicellulose, cellulose, and pectic materials. It provides support, structure, mechanical strength, and flexibility to the petiole, leaf veins, and stem of young plants, allowing for easy bending without breakage.
Detailed explanation-3: -The main function of the colon is to reabsorb the nutrients and fluid from the food and pass on the waste material to rectum.
Detailed explanation-4: -Chloroplasts include parenchymal cells containing chloroplasts. Thus, Chlorenchyma works by facilitating photosynthesis. During the synthesis of these cells, carbohydrates, including Palisade cells, are most abundantly distributed in the plant. They provide structural support to plants.
Detailed explanation-5: -Collenchyma cell is the simple permanent tissue which generally has a thin wall with irregular thickening at the corners. The cell wall is composed of lignin and pectin. They provide structural support, particularly in growing shoots and leaves.