Question

Give the name of plant tissue which possesses following characteristics:
a) Thin walled, packing cells
b) photosynthesis
c) Localised thickening​

Answer 1

$\fbox\pink{A}\fbox\blue{n}\fbox\purple{s}\fbox\green{w}\fbox\red{e}\fbox\orange{r}$Parenchyma- Thin walled, packing cells. 

It is flexible and loosely packed cells. They are often alive at maturity. Their shape changes as per function. They are filler tissue in soft parts of plant. 

Photosynthesis- Carbon fixation

Photosynthesis is the process in which carbon dioxide and water is taken up by plant and converted to carbohydrates in the presence of sunlight. This process fixes the carbon in the form of chemical energy. It is carried out by plants. 

Aerenchyma- Buoyancy

In many aquatic plants, parenchyma cells have large air cavities to give buoyancy to the plant and enable them to float in water. Such, parenchyma cells are called as aerenchyma.  

Collenchyma- Localized thickenings

Collenchyma cells are living, elongated and irregularly thickened at corners with less intercellular space. It allows easy bending of plant parts without breaking. 

Permanent tissue- Sclerenchyma

Permanent tissues are type of tissues which has lost the ability of division. Sclerenchyma is a type of permanent tissue. Sclerenchyma cells are dead, long, thin and narrow with thickened walls without any intercellular space. This tissue makes plant hard and stiff.  

Answer 2

Explanation:

Parenchyma- Thin walled, packing cells.

It is flexible and loosely packed cells. They are often alive at maturity. Their shape changes as per function. They are filler tissue in soft parts of plant.

Photosynthesis- Carbon fixation

Photosynthesis is the process in which carbon dioxide and water is taken up by plant and converted to carbohydrates in the presence of sunlight. This process fixes the carbon in the form of chemical energy. It is carried out by plants.

Aerenchyma- Buoyancy

In many aquatic plants, parenchyma cells have large air cavities to give buoyancy to the plant and enable them to float in water. Such, parenchyma cells are called as aerenchyma.

Collenchyma- Localized thickenings

Collenchyma cells are living, elongated and irregularly thickened at corners with less intercellular space. It allows easy bending of plant parts without breaking.

Permanent tissue- Sclerenchyma

Permanent tissues are type of tissues which has lost the ability of division. Sclerenchyma is a type of permanent tissue. Sclerenchyma cells are dead, long, thin and narrow with thickened walls without any intercellular space. This tissue makes plant hard and stiff.