(a) Root consists of four regions: root cap, region of maturation, region of elongation and region of meristematic activity. Root hairs develop from the region of maturation. Region of maturation is the area of origin of lateral roots. Root hair region is called piliferous zone. This root hair absorbs water and minerals from the soil.
NCERT Page-67 / N-59
Morphology of Plants
267166
The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
1 region of maturation.
2 region of elongation.
3 region of meristematic activity.
4 root hairs.
Explanation:
(b) Region of elongation lies above the region of meristematic activity. Cells in this region undergo rapid elongation and enlargement and are responsible for the growth of the root in length.
NCERT Page-67 / N-59
Morphology of Plants
267167
Prop roots of banyan tree are meant for
1 respiration.
2 absorption of water from soil.
3 providing support to big tree.
4 all of the above.
Explanation:
(c) Some plants are profusely branched and branches are thick and heavy. From these branches, roots arise and hang downwards in the air and later penetrate the soil and function as prop (for support) to the branch, e.g., Ficus bengalensis (Banyan).
NCERT Page-67
Morphology of Plants
267168
Pneumatophores are found in
1 the vegetation which is found in marshy and saline lake.
2 the vegetation which is found in saline soil.
3 xerophytic condition.
4 hydrophytic condition.
Explanation:
(a) Pneumatophores or respiratory roots are erect, short root showing vertical and negatively geotropic (grow in an upward direction). It protrudes some distance above substratum and occurs in certain halophytes, which grow in saline marshes (mangroves).
NCERT Page-67
Morphology of Plants
267169
Which of the following statements is correct with respect to the given figure showing different zones of a typical root?
1 Part B mainly helps in absorption of water.
2 Quiescent centre is present in part B.
3 Part A is most suitable for anatomical studies of root.
4 Differentiation of cells can be observed in part $\text{C}$.
Explanation:
(d) The edible part of sweet potato is a modified adventitious fleshy root which is called as tuberous root or single root tuber. Due to storage of food, the adventitious roots become thick and fleshy. In sweet potato, the swollen roots do not assume any shape but occur singly. Very fine secondary roots occur all over the tuber.
(a) Root consists of four regions: root cap, region of maturation, region of elongation and region of meristematic activity. Root hairs develop from the region of maturation. Region of maturation is the area of origin of lateral roots. Root hair region is called piliferous zone. This root hair absorbs water and minerals from the soil.
NCERT Page-67 / N-59
Morphology of Plants
267166
The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
1 region of maturation.
2 region of elongation.
3 region of meristematic activity.
4 root hairs.
Explanation:
(b) Region of elongation lies above the region of meristematic activity. Cells in this region undergo rapid elongation and enlargement and are responsible for the growth of the root in length.
NCERT Page-67 / N-59
Morphology of Plants
267167
Prop roots of banyan tree are meant for
1 respiration.
2 absorption of water from soil.
3 providing support to big tree.
4 all of the above.
Explanation:
(c) Some plants are profusely branched and branches are thick and heavy. From these branches, roots arise and hang downwards in the air and later penetrate the soil and function as prop (for support) to the branch, e.g., Ficus bengalensis (Banyan).
NCERT Page-67
Morphology of Plants
267168
Pneumatophores are found in
1 the vegetation which is found in marshy and saline lake.
2 the vegetation which is found in saline soil.
3 xerophytic condition.
4 hydrophytic condition.
Explanation:
(a) Pneumatophores or respiratory roots are erect, short root showing vertical and negatively geotropic (grow in an upward direction). It protrudes some distance above substratum and occurs in certain halophytes, which grow in saline marshes (mangroves).
NCERT Page-67
Morphology of Plants
267169
Which of the following statements is correct with respect to the given figure showing different zones of a typical root?
1 Part B mainly helps in absorption of water.
2 Quiescent centre is present in part B.
3 Part A is most suitable for anatomical studies of root.
4 Differentiation of cells can be observed in part $\text{C}$.
Explanation:
(d) The edible part of sweet potato is a modified adventitious fleshy root which is called as tuberous root or single root tuber. Due to storage of food, the adventitious roots become thick and fleshy. In sweet potato, the swollen roots do not assume any shape but occur singly. Very fine secondary roots occur all over the tuber.
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Morphology of Plants
267165
Root hairs develop from
1 region of maturation
2 region of elongation
3 region of meristematic activity
4 root cap
Explanation:
(a) Root consists of four regions: root cap, region of maturation, region of elongation and region of meristematic activity. Root hairs develop from the region of maturation. Region of maturation is the area of origin of lateral roots. Root hair region is called piliferous zone. This root hair absorbs water and minerals from the soil.
NCERT Page-67 / N-59
Morphology of Plants
267166
The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
1 region of maturation.
2 region of elongation.
3 region of meristematic activity.
4 root hairs.
Explanation:
(b) Region of elongation lies above the region of meristematic activity. Cells in this region undergo rapid elongation and enlargement and are responsible for the growth of the root in length.
NCERT Page-67 / N-59
Morphology of Plants
267167
Prop roots of banyan tree are meant for
1 respiration.
2 absorption of water from soil.
3 providing support to big tree.
4 all of the above.
Explanation:
(c) Some plants are profusely branched and branches are thick and heavy. From these branches, roots arise and hang downwards in the air and later penetrate the soil and function as prop (for support) to the branch, e.g., Ficus bengalensis (Banyan).
NCERT Page-67
Morphology of Plants
267168
Pneumatophores are found in
1 the vegetation which is found in marshy and saline lake.
2 the vegetation which is found in saline soil.
3 xerophytic condition.
4 hydrophytic condition.
Explanation:
(a) Pneumatophores or respiratory roots are erect, short root showing vertical and negatively geotropic (grow in an upward direction). It protrudes some distance above substratum and occurs in certain halophytes, which grow in saline marshes (mangroves).
NCERT Page-67
Morphology of Plants
267169
Which of the following statements is correct with respect to the given figure showing different zones of a typical root?
1 Part B mainly helps in absorption of water.
2 Quiescent centre is present in part B.
3 Part A is most suitable for anatomical studies of root.
4 Differentiation of cells can be observed in part $\text{C}$.
Explanation:
(d) The edible part of sweet potato is a modified adventitious fleshy root which is called as tuberous root or single root tuber. Due to storage of food, the adventitious roots become thick and fleshy. In sweet potato, the swollen roots do not assume any shape but occur singly. Very fine secondary roots occur all over the tuber.
(a) Root consists of four regions: root cap, region of maturation, region of elongation and region of meristematic activity. Root hairs develop from the region of maturation. Region of maturation is the area of origin of lateral roots. Root hair region is called piliferous zone. This root hair absorbs water and minerals from the soil.
NCERT Page-67 / N-59
Morphology of Plants
267166
The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
1 region of maturation.
2 region of elongation.
3 region of meristematic activity.
4 root hairs.
Explanation:
(b) Region of elongation lies above the region of meristematic activity. Cells in this region undergo rapid elongation and enlargement and are responsible for the growth of the root in length.
NCERT Page-67 / N-59
Morphology of Plants
267167
Prop roots of banyan tree are meant for
1 respiration.
2 absorption of water from soil.
3 providing support to big tree.
4 all of the above.
Explanation:
(c) Some plants are profusely branched and branches are thick and heavy. From these branches, roots arise and hang downwards in the air and later penetrate the soil and function as prop (for support) to the branch, e.g., Ficus bengalensis (Banyan).
NCERT Page-67
Morphology of Plants
267168
Pneumatophores are found in
1 the vegetation which is found in marshy and saline lake.
2 the vegetation which is found in saline soil.
3 xerophytic condition.
4 hydrophytic condition.
Explanation:
(a) Pneumatophores or respiratory roots are erect, short root showing vertical and negatively geotropic (grow in an upward direction). It protrudes some distance above substratum and occurs in certain halophytes, which grow in saline marshes (mangroves).
NCERT Page-67
Morphology of Plants
267169
Which of the following statements is correct with respect to the given figure showing different zones of a typical root?
1 Part B mainly helps in absorption of water.
2 Quiescent centre is present in part B.
3 Part A is most suitable for anatomical studies of root.
4 Differentiation of cells can be observed in part $\text{C}$.
Explanation:
(d) The edible part of sweet potato is a modified adventitious fleshy root which is called as tuberous root or single root tuber. Due to storage of food, the adventitious roots become thick and fleshy. In sweet potato, the swollen roots do not assume any shape but occur singly. Very fine secondary roots occur all over the tuber.
(a) Root consists of four regions: root cap, region of maturation, region of elongation and region of meristematic activity. Root hairs develop from the region of maturation. Region of maturation is the area of origin of lateral roots. Root hair region is called piliferous zone. This root hair absorbs water and minerals from the soil.
NCERT Page-67 / N-59
Morphology of Plants
267166
The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the:
1 region of maturation.
2 region of elongation.
3 region of meristematic activity.
4 root hairs.
Explanation:
(b) Region of elongation lies above the region of meristematic activity. Cells in this region undergo rapid elongation and enlargement and are responsible for the growth of the root in length.
NCERT Page-67 / N-59
Morphology of Plants
267167
Prop roots of banyan tree are meant for
1 respiration.
2 absorption of water from soil.
3 providing support to big tree.
4 all of the above.
Explanation:
(c) Some plants are profusely branched and branches are thick and heavy. From these branches, roots arise and hang downwards in the air and later penetrate the soil and function as prop (for support) to the branch, e.g., Ficus bengalensis (Banyan).
NCERT Page-67
Morphology of Plants
267168
Pneumatophores are found in
1 the vegetation which is found in marshy and saline lake.
2 the vegetation which is found in saline soil.
3 xerophytic condition.
4 hydrophytic condition.
Explanation:
(a) Pneumatophores or respiratory roots are erect, short root showing vertical and negatively geotropic (grow in an upward direction). It protrudes some distance above substratum and occurs in certain halophytes, which grow in saline marshes (mangroves).
NCERT Page-67
Morphology of Plants
267169
Which of the following statements is correct with respect to the given figure showing different zones of a typical root?
1 Part B mainly helps in absorption of water.
2 Quiescent centre is present in part B.
3 Part A is most suitable for anatomical studies of root.
4 Differentiation of cells can be observed in part $\text{C}$.
Explanation:
(d) The edible part of sweet potato is a modified adventitious fleshy root which is called as tuberous root or single root tuber. Due to storage of food, the adventitious roots become thick and fleshy. In sweet potato, the swollen roots do not assume any shape but occur singly. Very fine secondary roots occur all over the tuber.
