271558
Hard, lignified, thick walled, long and pointed cells in a plant are
1 parenchyma
2 sclerenchyma
3 collenchyma
4 sclereids
Explanation:
Exp:B Hard, lignified, thick walled, long and pointed cells in a plant are sclerenchyma. These cells are also specialised cells. The wall is made up of lignin which makes it waterproof cells are consists of rigid and thick cell walls. At maturity consists of dead cells.
CG PMT-2005
Anatomy of Flowering Plants
271559
Identify from the following a plant tissue in which lignin does not occur in the cellwalls
1 Sclerenchyma fibers
2 Collenchyma
3 Xylem tracheae
4 Sclereids
Explanation:
Exp:B Lignin does not occurs in the cell wall of collenchyma. Collenchyma cell are living cells and have cellulosic cell walls and helps the plant to keep their shape. Lignin, complex oxygen-containing organic polymer, with cellulose forms the chief constituent of wood. Lignin is second most abundant organic material on earth.
Karnataka CET-2005
Anatomy of Flowering Plants
271562
Latex vessels are found in (1) Calotropis (2) Hevea (3) Oleander (4) Papaya
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
Exp:C Latex vessels are found in Hevea and Papaya. In Hevea, latex vessels take place secondary phloem and papaya latex vessels take place in both secondary phloem and secondary xylem.
BHU PMT (Mains)-2007
Anatomy of Flowering Plants
271624
Bast fibres obtains from which part of the stem?
1 Cork
2 Cortex
3 Xylem
4 Phloem
Explanation:
Exp:D Bast fibres are obtains from 'phloem' part of the stem. Bast fibres also called 'phloem fibres'. It is a type of plant fiber that can be collected from the phloem or bast surrounding to the stem of mainly dicotyledonous plants. They are sclerenchymatous dead cells that provide mechanical strength to plants.
271558
Hard, lignified, thick walled, long and pointed cells in a plant are
1 parenchyma
2 sclerenchyma
3 collenchyma
4 sclereids
Explanation:
Exp:B Hard, lignified, thick walled, long and pointed cells in a plant are sclerenchyma. These cells are also specialised cells. The wall is made up of lignin which makes it waterproof cells are consists of rigid and thick cell walls. At maturity consists of dead cells.
CG PMT-2005
Anatomy of Flowering Plants
271559
Identify from the following a plant tissue in which lignin does not occur in the cellwalls
1 Sclerenchyma fibers
2 Collenchyma
3 Xylem tracheae
4 Sclereids
Explanation:
Exp:B Lignin does not occurs in the cell wall of collenchyma. Collenchyma cell are living cells and have cellulosic cell walls and helps the plant to keep their shape. Lignin, complex oxygen-containing organic polymer, with cellulose forms the chief constituent of wood. Lignin is second most abundant organic material on earth.
Karnataka CET-2005
Anatomy of Flowering Plants
271562
Latex vessels are found in (1) Calotropis (2) Hevea (3) Oleander (4) Papaya
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
Exp:C Latex vessels are found in Hevea and Papaya. In Hevea, latex vessels take place secondary phloem and papaya latex vessels take place in both secondary phloem and secondary xylem.
BHU PMT (Mains)-2007
Anatomy of Flowering Plants
271624
Bast fibres obtains from which part of the stem?
1 Cork
2 Cortex
3 Xylem
4 Phloem
Explanation:
Exp:D Bast fibres are obtains from 'phloem' part of the stem. Bast fibres also called 'phloem fibres'. It is a type of plant fiber that can be collected from the phloem or bast surrounding to the stem of mainly dicotyledonous plants. They are sclerenchymatous dead cells that provide mechanical strength to plants.
271558
Hard, lignified, thick walled, long and pointed cells in a plant are
1 parenchyma
2 sclerenchyma
3 collenchyma
4 sclereids
Explanation:
Exp:B Hard, lignified, thick walled, long and pointed cells in a plant are sclerenchyma. These cells are also specialised cells. The wall is made up of lignin which makes it waterproof cells are consists of rigid and thick cell walls. At maturity consists of dead cells.
CG PMT-2005
Anatomy of Flowering Plants
271559
Identify from the following a plant tissue in which lignin does not occur in the cellwalls
1 Sclerenchyma fibers
2 Collenchyma
3 Xylem tracheae
4 Sclereids
Explanation:
Exp:B Lignin does not occurs in the cell wall of collenchyma. Collenchyma cell are living cells and have cellulosic cell walls and helps the plant to keep their shape. Lignin, complex oxygen-containing organic polymer, with cellulose forms the chief constituent of wood. Lignin is second most abundant organic material on earth.
Karnataka CET-2005
Anatomy of Flowering Plants
271562
Latex vessels are found in (1) Calotropis (2) Hevea (3) Oleander (4) Papaya
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
Exp:C Latex vessels are found in Hevea and Papaya. In Hevea, latex vessels take place secondary phloem and papaya latex vessels take place in both secondary phloem and secondary xylem.
BHU PMT (Mains)-2007
Anatomy of Flowering Plants
271624
Bast fibres obtains from which part of the stem?
1 Cork
2 Cortex
3 Xylem
4 Phloem
Explanation:
Exp:D Bast fibres are obtains from 'phloem' part of the stem. Bast fibres also called 'phloem fibres'. It is a type of plant fiber that can be collected from the phloem or bast surrounding to the stem of mainly dicotyledonous plants. They are sclerenchymatous dead cells that provide mechanical strength to plants.
271558
Hard, lignified, thick walled, long and pointed cells in a plant are
1 parenchyma
2 sclerenchyma
3 collenchyma
4 sclereids
Explanation:
Exp:B Hard, lignified, thick walled, long and pointed cells in a plant are sclerenchyma. These cells are also specialised cells. The wall is made up of lignin which makes it waterproof cells are consists of rigid and thick cell walls. At maturity consists of dead cells.
CG PMT-2005
Anatomy of Flowering Plants
271559
Identify from the following a plant tissue in which lignin does not occur in the cellwalls
1 Sclerenchyma fibers
2 Collenchyma
3 Xylem tracheae
4 Sclereids
Explanation:
Exp:B Lignin does not occurs in the cell wall of collenchyma. Collenchyma cell are living cells and have cellulosic cell walls and helps the plant to keep their shape. Lignin, complex oxygen-containing organic polymer, with cellulose forms the chief constituent of wood. Lignin is second most abundant organic material on earth.
Karnataka CET-2005
Anatomy of Flowering Plants
271562
Latex vessels are found in (1) Calotropis (2) Hevea (3) Oleander (4) Papaya
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
Exp:C Latex vessels are found in Hevea and Papaya. In Hevea, latex vessels take place secondary phloem and papaya latex vessels take place in both secondary phloem and secondary xylem.
BHU PMT (Mains)-2007
Anatomy of Flowering Plants
271624
Bast fibres obtains from which part of the stem?
1 Cork
2 Cortex
3 Xylem
4 Phloem
Explanation:
Exp:D Bast fibres are obtains from 'phloem' part of the stem. Bast fibres also called 'phloem fibres'. It is a type of plant fiber that can be collected from the phloem or bast surrounding to the stem of mainly dicotyledonous plants. They are sclerenchymatous dead cells that provide mechanical strength to plants.
