333900
In conifers, fibres are likely to be absent in
1 Secondary phloem
2 Secondary Xylem
3 Primary phloem
4 Leaves
Explanation:
Sclerenchyma is absent in secondary xylem, thus, secondary xylem is devoid of fibres.
NCERT Exemplar
BIOXI06: ANATOMY OF FLOWERING PLANTS
333901
Match the columns I and II. Column I Column II A Pine P Sclereids B Nerium Q Absence of phloem parenchyma C Pulp of guava R Vessels are absent D Maize S Sunken stomata
Pine - Vessels are absent (pine is an example of gymnosperm) Nerium - Sunken stomata Pulp of Guava - Sclereids Maize - Absence of phloem parenchyma.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333902
In stems, the protoxylem lies towards ____ A ____ and the metaxylem lies towards the ____ B ____ of the organ.
1 A - periphery, B - lateral side
2 A - the centre, B - pith
3 A - the centre, B - periphery
4 A - Pith, B - the centre.
Explanation:
In stems, the protoxylem and metaxylem lies towards the centre and periphery respectively.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333903
In angiosperms, ____ and ____ are the main water transporting elements.
1 Tracheids, sieve tube elements
2 Vessels, companion cells
3 Tracheid, sieve pore
4 Tracheids, vessels.
Explanation:
In angiosperms, tracheids and vessels are the main water transporting elements.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333904
Statement A : The companion cells are specialised parenchymatous cells. Statement B : The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both the statements are correct. The companion cells are specialised parenchymatous cells, which are closely associated with sieve tube elements. The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
333900
In conifers, fibres are likely to be absent in
1 Secondary phloem
2 Secondary Xylem
3 Primary phloem
4 Leaves
Explanation:
Sclerenchyma is absent in secondary xylem, thus, secondary xylem is devoid of fibres.
NCERT Exemplar
BIOXI06: ANATOMY OF FLOWERING PLANTS
333901
Match the columns I and II. Column I Column II A Pine P Sclereids B Nerium Q Absence of phloem parenchyma C Pulp of guava R Vessels are absent D Maize S Sunken stomata
Pine - Vessels are absent (pine is an example of gymnosperm) Nerium - Sunken stomata Pulp of Guava - Sclereids Maize - Absence of phloem parenchyma.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333902
In stems, the protoxylem lies towards ____ A ____ and the metaxylem lies towards the ____ B ____ of the organ.
1 A - periphery, B - lateral side
2 A - the centre, B - pith
3 A - the centre, B - periphery
4 A - Pith, B - the centre.
Explanation:
In stems, the protoxylem and metaxylem lies towards the centre and periphery respectively.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333903
In angiosperms, ____ and ____ are the main water transporting elements.
1 Tracheids, sieve tube elements
2 Vessels, companion cells
3 Tracheid, sieve pore
4 Tracheids, vessels.
Explanation:
In angiosperms, tracheids and vessels are the main water transporting elements.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333904
Statement A : The companion cells are specialised parenchymatous cells. Statement B : The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both the statements are correct. The companion cells are specialised parenchymatous cells, which are closely associated with sieve tube elements. The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
333900
In conifers, fibres are likely to be absent in
1 Secondary phloem
2 Secondary Xylem
3 Primary phloem
4 Leaves
Explanation:
Sclerenchyma is absent in secondary xylem, thus, secondary xylem is devoid of fibres.
NCERT Exemplar
BIOXI06: ANATOMY OF FLOWERING PLANTS
333901
Match the columns I and II. Column I Column II A Pine P Sclereids B Nerium Q Absence of phloem parenchyma C Pulp of guava R Vessels are absent D Maize S Sunken stomata
Pine - Vessels are absent (pine is an example of gymnosperm) Nerium - Sunken stomata Pulp of Guava - Sclereids Maize - Absence of phloem parenchyma.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333902
In stems, the protoxylem lies towards ____ A ____ and the metaxylem lies towards the ____ B ____ of the organ.
1 A - periphery, B - lateral side
2 A - the centre, B - pith
3 A - the centre, B - periphery
4 A - Pith, B - the centre.
Explanation:
In stems, the protoxylem and metaxylem lies towards the centre and periphery respectively.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333903
In angiosperms, ____ and ____ are the main water transporting elements.
1 Tracheids, sieve tube elements
2 Vessels, companion cells
3 Tracheid, sieve pore
4 Tracheids, vessels.
Explanation:
In angiosperms, tracheids and vessels are the main water transporting elements.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333904
Statement A : The companion cells are specialised parenchymatous cells. Statement B : The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both the statements are correct. The companion cells are specialised parenchymatous cells, which are closely associated with sieve tube elements. The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
333900
In conifers, fibres are likely to be absent in
1 Secondary phloem
2 Secondary Xylem
3 Primary phloem
4 Leaves
Explanation:
Sclerenchyma is absent in secondary xylem, thus, secondary xylem is devoid of fibres.
NCERT Exemplar
BIOXI06: ANATOMY OF FLOWERING PLANTS
333901
Match the columns I and II. Column I Column II A Pine P Sclereids B Nerium Q Absence of phloem parenchyma C Pulp of guava R Vessels are absent D Maize S Sunken stomata
Pine - Vessels are absent (pine is an example of gymnosperm) Nerium - Sunken stomata Pulp of Guava - Sclereids Maize - Absence of phloem parenchyma.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333902
In stems, the protoxylem lies towards ____ A ____ and the metaxylem lies towards the ____ B ____ of the organ.
1 A - periphery, B - lateral side
2 A - the centre, B - pith
3 A - the centre, B - periphery
4 A - Pith, B - the centre.
Explanation:
In stems, the protoxylem and metaxylem lies towards the centre and periphery respectively.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333903
In angiosperms, ____ and ____ are the main water transporting elements.
1 Tracheids, sieve tube elements
2 Vessels, companion cells
3 Tracheid, sieve pore
4 Tracheids, vessels.
Explanation:
In angiosperms, tracheids and vessels are the main water transporting elements.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333904
Statement A : The companion cells are specialised parenchymatous cells. Statement B : The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both the statements are correct. The companion cells are specialised parenchymatous cells, which are closely associated with sieve tube elements. The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
333900
In conifers, fibres are likely to be absent in
1 Secondary phloem
2 Secondary Xylem
3 Primary phloem
4 Leaves
Explanation:
Sclerenchyma is absent in secondary xylem, thus, secondary xylem is devoid of fibres.
NCERT Exemplar
BIOXI06: ANATOMY OF FLOWERING PLANTS
333901
Match the columns I and II. Column I Column II A Pine P Sclereids B Nerium Q Absence of phloem parenchyma C Pulp of guava R Vessels are absent D Maize S Sunken stomata
Pine - Vessels are absent (pine is an example of gymnosperm) Nerium - Sunken stomata Pulp of Guava - Sclereids Maize - Absence of phloem parenchyma.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333902
In stems, the protoxylem lies towards ____ A ____ and the metaxylem lies towards the ____ B ____ of the organ.
1 A - periphery, B - lateral side
2 A - the centre, B - pith
3 A - the centre, B - periphery
4 A - Pith, B - the centre.
Explanation:
In stems, the protoxylem and metaxylem lies towards the centre and periphery respectively.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333903
In angiosperms, ____ and ____ are the main water transporting elements.
1 Tracheids, sieve tube elements
2 Vessels, companion cells
3 Tracheid, sieve pore
4 Tracheids, vessels.
Explanation:
In angiosperms, tracheids and vessels are the main water transporting elements.
BIOXI06: ANATOMY OF FLOWERING PLANTS
333904
Statement A : The companion cells are specialised parenchymatous cells. Statement B : The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both the statements are correct. The companion cells are specialised parenchymatous cells, which are closely associated with sieve tube elements. The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls.
