271855
The cork cambium, cork and secondary cortex are collectively called:
1 Phellem
2 Phelloderm
3 Phellogen
4 periderm
Explanation:
Exp:D The cork cambium (phellogen) divide to produce or cut off both sides the outer side differentiate into outer cork (phelllem) and inner side differentiate into secondary cortex (phelloderm). - Cork is impervious to water due to suberin deposition in the cell wall - Cork cambium, cork and secondary cortex are collectively called as periderm.
Exp:D Bark is the outermost layers of stems as well as roots of woody plants. Plants with bark consist of trees woody vines, as well as shrubs. Bark relates to all the tissues outer the vascular cambium as well as it has a nontechnical term. It blankets the wood and contains the main bark along the outer bark. The central bank that is in older stems living tissues comprises the innermost layer of the periderm. - The external bark on older stems contains the dead tissue on the ground of the stems, along with parts of the extreme periderm as well as all the tissues on the outer side of the periderm. The outer bark on trees that lies outside of the living periderm is also called as rhytidome.
AIIMS-2009
Anatomy of Flowering Plants
271859
Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of
1 Resins
2 Suberin
3 Lignins
4 Tannins.
Explanation:
Exp:B Cork cambium is a secondary lateral meristem that may arises from permanent living cells of hypodermis or outer cortex. It is composed of a single layer of meristematic cells. - Its cells divide tangentially and periclinally towards the outer surface and produce cork cells. These cells are compactly arranged and have thin cellulose walls in the beginning. As they mature there is a gradual loss of living matter and cells get elongated radially, vertically or tangentially. - The cell walls become thick because of development of fatty substance called suberin, which is impervious to water.
AIIMS-2004
Anatomy of Flowering Plants
271862
Periderm is produced by
1 vascular cambium
2 fascicular cambium
3 phellogen
4 intrafascicular cambium.
Explanation:
Exp:C Periderm is produced by phellogen. - Cell of secondary cortex are parenchymatous. -Phellogen, phellem, and phelloderm are collectively known as periderm.
271855
The cork cambium, cork and secondary cortex are collectively called:
1 Phellem
2 Phelloderm
3 Phellogen
4 periderm
Explanation:
Exp:D The cork cambium (phellogen) divide to produce or cut off both sides the outer side differentiate into outer cork (phelllem) and inner side differentiate into secondary cortex (phelloderm). - Cork is impervious to water due to suberin deposition in the cell wall - Cork cambium, cork and secondary cortex are collectively called as periderm.
Exp:D Bark is the outermost layers of stems as well as roots of woody plants. Plants with bark consist of trees woody vines, as well as shrubs. Bark relates to all the tissues outer the vascular cambium as well as it has a nontechnical term. It blankets the wood and contains the main bark along the outer bark. The central bank that is in older stems living tissues comprises the innermost layer of the periderm. - The external bark on older stems contains the dead tissue on the ground of the stems, along with parts of the extreme periderm as well as all the tissues on the outer side of the periderm. The outer bark on trees that lies outside of the living periderm is also called as rhytidome.
AIIMS-2009
Anatomy of Flowering Plants
271859
Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of
1 Resins
2 Suberin
3 Lignins
4 Tannins.
Explanation:
Exp:B Cork cambium is a secondary lateral meristem that may arises from permanent living cells of hypodermis or outer cortex. It is composed of a single layer of meristematic cells. - Its cells divide tangentially and periclinally towards the outer surface and produce cork cells. These cells are compactly arranged and have thin cellulose walls in the beginning. As they mature there is a gradual loss of living matter and cells get elongated radially, vertically or tangentially. - The cell walls become thick because of development of fatty substance called suberin, which is impervious to water.
AIIMS-2004
Anatomy of Flowering Plants
271862
Periderm is produced by
1 vascular cambium
2 fascicular cambium
3 phellogen
4 intrafascicular cambium.
Explanation:
Exp:C Periderm is produced by phellogen. - Cell of secondary cortex are parenchymatous. -Phellogen, phellem, and phelloderm are collectively known as periderm.
271855
The cork cambium, cork and secondary cortex are collectively called:
1 Phellem
2 Phelloderm
3 Phellogen
4 periderm
Explanation:
Exp:D The cork cambium (phellogen) divide to produce or cut off both sides the outer side differentiate into outer cork (phelllem) and inner side differentiate into secondary cortex (phelloderm). - Cork is impervious to water due to suberin deposition in the cell wall - Cork cambium, cork and secondary cortex are collectively called as periderm.
Exp:D Bark is the outermost layers of stems as well as roots of woody plants. Plants with bark consist of trees woody vines, as well as shrubs. Bark relates to all the tissues outer the vascular cambium as well as it has a nontechnical term. It blankets the wood and contains the main bark along the outer bark. The central bank that is in older stems living tissues comprises the innermost layer of the periderm. - The external bark on older stems contains the dead tissue on the ground of the stems, along with parts of the extreme periderm as well as all the tissues on the outer side of the periderm. The outer bark on trees that lies outside of the living periderm is also called as rhytidome.
AIIMS-2009
Anatomy of Flowering Plants
271859
Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of
1 Resins
2 Suberin
3 Lignins
4 Tannins.
Explanation:
Exp:B Cork cambium is a secondary lateral meristem that may arises from permanent living cells of hypodermis or outer cortex. It is composed of a single layer of meristematic cells. - Its cells divide tangentially and periclinally towards the outer surface and produce cork cells. These cells are compactly arranged and have thin cellulose walls in the beginning. As they mature there is a gradual loss of living matter and cells get elongated radially, vertically or tangentially. - The cell walls become thick because of development of fatty substance called suberin, which is impervious to water.
AIIMS-2004
Anatomy of Flowering Plants
271862
Periderm is produced by
1 vascular cambium
2 fascicular cambium
3 phellogen
4 intrafascicular cambium.
Explanation:
Exp:C Periderm is produced by phellogen. - Cell of secondary cortex are parenchymatous. -Phellogen, phellem, and phelloderm are collectively known as periderm.
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Anatomy of Flowering Plants
271855
The cork cambium, cork and secondary cortex are collectively called:
1 Phellem
2 Phelloderm
3 Phellogen
4 periderm
Explanation:
Exp:D The cork cambium (phellogen) divide to produce or cut off both sides the outer side differentiate into outer cork (phelllem) and inner side differentiate into secondary cortex (phelloderm). - Cork is impervious to water due to suberin deposition in the cell wall - Cork cambium, cork and secondary cortex are collectively called as periderm.
Exp:D Bark is the outermost layers of stems as well as roots of woody plants. Plants with bark consist of trees woody vines, as well as shrubs. Bark relates to all the tissues outer the vascular cambium as well as it has a nontechnical term. It blankets the wood and contains the main bark along the outer bark. The central bank that is in older stems living tissues comprises the innermost layer of the periderm. - The external bark on older stems contains the dead tissue on the ground of the stems, along with parts of the extreme periderm as well as all the tissues on the outer side of the periderm. The outer bark on trees that lies outside of the living periderm is also called as rhytidome.
AIIMS-2009
Anatomy of Flowering Plants
271859
Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of
1 Resins
2 Suberin
3 Lignins
4 Tannins.
Explanation:
Exp:B Cork cambium is a secondary lateral meristem that may arises from permanent living cells of hypodermis or outer cortex. It is composed of a single layer of meristematic cells. - Its cells divide tangentially and periclinally towards the outer surface and produce cork cells. These cells are compactly arranged and have thin cellulose walls in the beginning. As they mature there is a gradual loss of living matter and cells get elongated radially, vertically or tangentially. - The cell walls become thick because of development of fatty substance called suberin, which is impervious to water.
AIIMS-2004
Anatomy of Flowering Plants
271862
Periderm is produced by
1 vascular cambium
2 fascicular cambium
3 phellogen
4 intrafascicular cambium.
Explanation:
Exp:C Periderm is produced by phellogen. - Cell of secondary cortex are parenchymatous. -Phellogen, phellem, and phelloderm are collectively known as periderm.
