Question

ਸਕਲੈਰਨਕਾਈਮਾ ਟਿਸ਼ੂ ਦੇ ਸੈੱਲ ਦੀਆਂ ਕੰਧਾਂ ਕਿਸ ਪਦਾਰਥ ਦੇ ਜਮ੍ਹਾਂ ਹੋਣ ਕਾਰਨ ਸੰਘਣੀਆਂ ਹੋ ਜਾਂਦੀਆਂ ਹਨ? The cell walls of sclerenchyma tissue are thickened due to deposition of which material? सकलैरनकाईमा ऊतक(टिशु) की सैल दीवारें किस पदार्थ के जम जाने के कारण मोटी हो जाती हैं? *

ਸੁਬੇਰਿਨ/ Suberin/सुबेरिन
ਕਾਂਡਰੀਨ/Chondrin/कांडरीन
ਓਸੀਨ /Ossein/औसीन
ਲਿਗਨਿਨ / Lignin/लिगनिन​

Answer 1

Explanation:

On maturity, Sclerenchymatous cells becomes dead due to the heavy deposition of Lignin on their cell walls. Sclerenchyma is a simple permanent tissue and a dead tissue which is mostly functioned for providing protection and support to the plant's body.

So, the correct option is:

$\LARGE{ \boxed{ \bf{ \orange{Option \: D}}}}$

What is Lignin?

Lignin is a organic compound which is mostly found in the addition with cell wall. They provide stiffness and support to the plant's body. As maturity increases, lignin concentration also increases.

Do you know? After Cellulose, Lignin is the second most abundant polymer found in plant's body.

Know more about sclerenchyma !!

• They are dead simple permanent tissue.
• They have numerous pits present on the walls.
• They have two kinds of cells - Sclereids(Stone cells) and Fibres.
• They are spindle shaped and have tapering ends.
• They are source of natural fibres like Hemp, coir etc.
• They are also present on the hard covering of see and nuts and gives them grittiness.

And we are done !!

Answer 2

Answer:

On maturity, Sclerenchymatous cells becomes dead due to the heavy deposition of Lignin on their cell walls. Sclerenchyma is a simple permanent tissue and a dead tissue which is mostly functioned for providing protection and support to the plant's body.

So, the correct option is:

$\huge \bf \orange {Option \: D}$

What is Lignin?

Lignin is a organic compound which is mostly found in the addition with cell wall. They provide stiffness and support to the plant's body. As maturity increases, lignin concentration also increases.

$\huge \bf \purple {More \: Info}$

Do you know? After Cellulose, Lignin is the second most abundant polymer found in plant's body.

Know more about sclerenchyma !!

• They are dead simple permanent tissue.

• They have numerous pits present on the walls.

• They have two kinds of cells - Sclereids(Stone cells) and Fibres.

• They are spindle shaped and have tapering ends.

• They are source of natural fibres like Hemp, coir etc.

• They are also present on the hard covering of see and nuts and gives them grittiness.