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  • The pulp of fruits hasOption: 1 ParenchymaOption: 2 Collenchyma<div class='qn

The pulp of fruits has

Option: 1

Parenchyma


Option: 2

Collenchyma


Option: 3

Sclerenchyma


Option: 4

All of these


Answers (1)

best_answer
 

 

Simple Permanent Tissues: Parenchyma

 

  • Parenchyma is the most common type of simple permanent tissue.
  • Its cells are morphologically and physiologically unspecialised.
  • It forms the framework of all the plant organ, so it is called the principle ground tissue.
  • Cortex, pith, mesophyll of leaves, pulp of fruit, floral parts, medullary rays, etc. are made up of parenchyma. 
  • The parenchyma cells are generally isodiametric but can also be elongated and  lobed as seen in mesophyll of leaves.
  • These cells can be closely packed as in fruit pulp or can have intercellular spaces between them as in endosperm.
  • The plasmodesmata is usually present between the parenchyma cells.
  • They have primary cell wall made of cellulose.
  • They are capable of dedifferentiation and develop into secondary meristem.
  • These are the living tissues in the plant body.

 

Forms of Parenchyma:

  1. Chlorenchyma: parenchyma with chloroplast. Seen in mesophyll and palisade tissues of leaves.
  2. Aerenchyma: Parenchyma with intercellular spaces filled with air. It is seen in aquatic plants.
  3. Prosenchyma: Elongated parenchyma.
  4. Stellate parenchyma: Star shaped parenchyma.
  5. Idioblast: Parenchyma with excretory material like tannins, resins, oils, calcium oxalate etc.

Functions of Parenchyma:

  1. Forms the ground tissue of the plant body. Because of unspecialised cells, it can perform many functions.
  2. Storage of food.
  3. Storage of mucilage.
  4. Photosynthesis.
  5. Secretion and excretion.
  6. Protection.

TIP: A primary cell wall is made up of cellulose, hemicellulose and pectin.
 

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The pulp of fruits has parenchyma.

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Gunjita

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