271879
Annual rings are formed by period activity of
1 vascular cambium
2 vascular elements
3 pericyle and endodermis
4 Both (a) and (b)
Explanation:
Exp:A Annual rings are formed by secondary xylem also called as growth ring. The activity of cambium does not remain same. It is changeable in the whole year. Activity of vascular cambium is affected by physiological and environmental factors.
JCECE-2014
Anatomy of Flowering Plants
271880
Diffuse porous wood is characteristics of those plants which are growing in: -
1 Alpine region
2 Cold winter regions
3 Temperate climate
4 Tropics
Explanation:
: Diffuse porous wood are most common in trees growing in the regions with tropical climate. In a diffused porous wood, the large sized vessels are distributed through spring wood and autumn wood. Eg. Syzygium cumini.
AIPMT-2003
Anatomy of Flowering Plants
271883
Out of diffuse porous and ring porous woods, which is correct?
1 Ring porous wood carries more water for short period.
2 Diffuse porous wood carries more water.
3 Ring porous wood carries more water when need is higher.
4 Diffuse porous wood is less specialized but conducts water rapidly throughout.
Explanation:
Exp:C Ring porous wood carries more water need is higher. Ring porous wood provides better translocation when requirement of plant is more. Hence, it is very advanced than diffuse porous wood.
271879
Annual rings are formed by period activity of
1 vascular cambium
2 vascular elements
3 pericyle and endodermis
4 Both (a) and (b)
Explanation:
Exp:A Annual rings are formed by secondary xylem also called as growth ring. The activity of cambium does not remain same. It is changeable in the whole year. Activity of vascular cambium is affected by physiological and environmental factors.
JCECE-2014
Anatomy of Flowering Plants
271880
Diffuse porous wood is characteristics of those plants which are growing in: -
1 Alpine region
2 Cold winter regions
3 Temperate climate
4 Tropics
Explanation:
: Diffuse porous wood are most common in trees growing in the regions with tropical climate. In a diffused porous wood, the large sized vessels are distributed through spring wood and autumn wood. Eg. Syzygium cumini.
AIPMT-2003
Anatomy of Flowering Plants
271883
Out of diffuse porous and ring porous woods, which is correct?
1 Ring porous wood carries more water for short period.
2 Diffuse porous wood carries more water.
3 Ring porous wood carries more water when need is higher.
4 Diffuse porous wood is less specialized but conducts water rapidly throughout.
Explanation:
Exp:C Ring porous wood carries more water need is higher. Ring porous wood provides better translocation when requirement of plant is more. Hence, it is very advanced than diffuse porous wood.
271879
Annual rings are formed by period activity of
1 vascular cambium
2 vascular elements
3 pericyle and endodermis
4 Both (a) and (b)
Explanation:
Exp:A Annual rings are formed by secondary xylem also called as growth ring. The activity of cambium does not remain same. It is changeable in the whole year. Activity of vascular cambium is affected by physiological and environmental factors.
JCECE-2014
Anatomy of Flowering Plants
271880
Diffuse porous wood is characteristics of those plants which are growing in: -
1 Alpine region
2 Cold winter regions
3 Temperate climate
4 Tropics
Explanation:
: Diffuse porous wood are most common in trees growing in the regions with tropical climate. In a diffused porous wood, the large sized vessels are distributed through spring wood and autumn wood. Eg. Syzygium cumini.
AIPMT-2003
Anatomy of Flowering Plants
271883
Out of diffuse porous and ring porous woods, which is correct?
1 Ring porous wood carries more water for short period.
2 Diffuse porous wood carries more water.
3 Ring porous wood carries more water when need is higher.
4 Diffuse porous wood is less specialized but conducts water rapidly throughout.
Explanation:
Exp:C Ring porous wood carries more water need is higher. Ring porous wood provides better translocation when requirement of plant is more. Hence, it is very advanced than diffuse porous wood.
