Biology

Difference between parenchyma and collenchyma

Main difference

The main difference between parenchyma and collenchyma is that the parenchyma is involved in storage, secretion and photosynthesis, while the collenchyma is involved in the transport of nutrients and support …

Parenchyma vs. Collenchyma

The parenchyma participates in storage, secretion and photosynthesis, while the collenchyma participates in the transport of nutrients and support. The parenchyma is found in all parts of the plant such as fruits, flowers, leaves, the pith of the stem and the pulp, while the collenchyma is found in the leaves, the petiole and the young stems appearing as an incessant ring underneath the epidermis. The parenchyma are unspecialized cells; conversely, collenchyma are specialized cells in plants. The parenchyma contains a thin cell wall; on the other hand, the collenchyma contains an uneven thin cell wall. The cell wall of parenchyma cells is made up of cellulose; on the other hand, the cell wall of collenchyma is made up of pectin and cellulose. The parenchyma cells have intercellular spaces present between them; conversely, the collenchyma has little or no space between them. The shape of the parenchyma is isodiametric, while the shape of the collenchyma is tubular. The parenchyma creates permanent tissues, when stimulated they can achieve meristematic activity just as the collenchyma also creates permanent tissues, when stimulated they can achieve meristematic activity. The parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and floatation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and provide mechanical support to the plant. when stimulated, can achieve meristematic activity. The parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. The parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. The parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the sole. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant. while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the sole. When stimulated, they can achieve meristematic activity. Parenchyma and collenchyma have living cells at maturity. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the function of the collenchyma includes resisting bending and stretching by the wind and providing mechanical support to the plant.

Comparative chart
Parenchyma Collenchyma
The cells found in each soft part of the plant are called parenchyma. Cells found on leaves, petioles, and young stems are called collenchyma.
Found in
In every soft part of the plant In specific parts such as leaves, petioles and young stems they are called collenchyma.
Cell type
Unspecialized cells Specialized cells
Cell shape
Isodiametric Tubular shape
Cellular wall
Thin cell wall Uneven cell wall
Cell wall material
Cellulose Pectin and cellulose
Intercellular spaces
Present There are no or few spaces present
Meristematic activity
Present Present
Features
Food storage, gas exchange, photosynthesis and floatation of aqueous plants. Resist bending and stretching by the wind and provide mechanical support to the sole.

What is the parenchyma?

The cells found in each soft part of the plant are called parenchyma. The parenchyma is the simplest type of tissue that is made up of living cells and forms a thin layer of cell wall called the primary cell wall. This cell wall is made up of cellulose and hemicellulose. The parenchyma is found throughout the plant and appears as a continuous mass from the leaves to the roots, the stem and the fruits. They have an active protoplast. The parenchyma is responsible for creating many other specialized tissues and cells. Structurally, the parenchyma is isodiametric as it has thin cell walls, so it supports pressure and force around its cell walls. In this state, the cell increases its capacity volume to equalize the pressure on all sides. Parenchyma is abundantly present in plant organelles such as Golgi bodies and ribosomes. The parenchyma is alive

Features
  • The main function of the parenchyma is to repair plants.
  • They are responsible for photosynthesis, gas exchange and form mesophilic cells in leaves.
  • Storage of fats, oils, proteins, starch and water in roots, tubers, cotyledons and endosperm of seeds.
  • Secretion
  • Provides buoyancy and other specialized functions.

What is collenchyma?

Cells found on leaves, petioles, and young stems are called collenchyma. Collenchyma is known to provide structural support to plant cells. Collenchymal cells are also living cells that have a thick layer of cell walls. These cell walls are made up of hemicellulose, pectin, and cellulose. The cell wall becomes thick and is strongly affected by mechanical stress on the plant. Collenchymal cell walls in agitated plants can be 40 to 100 percent thicker than in non-agitated plants. Collenchymal cells have a prominent nucleus. They have huge central vacuoles, which allow cells to regulate and store ions and water. Collenchyma also stores food and prevents tearing of the leaves. Collenchymal cells are present on the dicot leaves above the petiole. They are absent in monocots. They are tubular.

Types

  • Angular
  • Lacunar
  • Laminate

Features

  • Carry out photosynthesis and make food.
  • Resist bending and stretching of plant parts by wind.
  • Provide mechanical support to the plant.

Key differences

  1. The parenchyma participates in storage, secretion and photosynthesis, while the collenchyma participates in the transport of nutrients and support.
  2. The parenchyma is found in all parts of the plant such as fruits, flowers, leaves, the pith of the stem and the pulp, while the collenchyma is found in the leaves, petiole and young stems appearing as an incessant ring underneath the epidermis.
  3. The parenchyma are unspecialized cells; conversely, collenchyma are specialized cells in plants.
  4. The parenchyma contains a thin cell wall; on the other hand, the collenchyma contains an uneven thin cell wall.
  5. The cell wall of parenchymal cells is made up of cellulose; on the other hand, the cell wall of collenchyma is made up of pectin and cellulose.
  6. The parenchyma cells have intercellular spaces present between them; conversely, the collenchyma has little or no space between them.
  7. The shape of the parenchyma is isodiametric, while the shape of the collenchyma is tubular.
  8. The parenchyma creates permanent tissues, when stimulated they can achieve meristematic activity just as the collenchyma also creates permanent tissues, when stimulated they can achieve meristematic activity.
  9. The parenchyma and collenchyma have living cells at maturity.
  10. The functions of the parenchyma include food storage, gas exchange, photosynthesis, and the flotation of aqueous plants, while the functions of the collenchyma include resisting bending and stretching by the wind and providing mechanical support to the plant.
Final thought

The above discussion concludes that the parenchyma is involved in storage, secretion and photosynthesis, while the collenchyma is involved in the transport of nutrients and support.

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