HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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parenchyma
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collenchyma
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sclerenchyma
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None of the above
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Detailed explanation-1: -Parenchyma cells are the most common plant cell type. They occur in vascular bundles, leaves, and epidermis. Parenchyma cells that are involved in photosynthesis are called chlorenchyma cells.
Detailed explanation-2: -Parenchyma function in plants Storage of food & nutrients like starch, hormones, proteins, etc. is the primary function of parenchyma in plants. In the leaves and cortex of the young stem, parenchyma cells are associated with the manufacturing of food by photosynthesis.
Detailed explanation-3: -Parenchyma cells are essential for activities like photosynthesis, storage, secretion, assimilation, respiration, excretion and radial transport of water and solute.
Detailed explanation-4: -In fact, most photosynthesis takes place within specialized parenchyma cells found within leaves. These parenchyma cells, called chlorenchyma cells, contain chloroplasts.
Detailed explanation-5: -Parenchyma cells are the least specialized type of plant cell and the most abundant in plants. They are usually rounded and can be found in all plant organs. In leaves they make up the mesophyll, where photosynthesis takes place (Chapter 4).