(c) Floral features of family solanaceae
Inflorescence: Solitary and axillary
Flowers: Actinomorphic, bisexual flowers
Calyx: Calyx is composed of five sepals that are united and persistent. Aestivation is valvate.
Corolla: Corolla consists of five united petals with valvate aestivation.
Androecium: It consists of five epipetalous stamens.
Gynoecium: It consists of bicarpellary, syncarpous
superior ovary with axile placentation.
Fruits: Berry
Seeds: Numerous, endospermous
Floral formula: $\oplus {{\delta }_{+}}{{K}_{\left( 5 \right)}}{{C}_{\left( 5 \right)}}\cdot {{A}_{5}}{{G}_{\left( 2 \right)}}$
NCERT Page-77/ N-66
Morphology of Plants
267222
Marginal placentation is generally found in Family
1 Leguminosae
2 Cucurbitaceae
3 Malvaceae
4 Brassicaceae
Explanation:
(a) In marginal placentation, one or two alternate rows of ovules occur longitudinally along the ridge in the wall of the ovary in the area of fusion of its two margins or ventral suture. A true placental is believed to be absent. Ovary is unilocular. Marginal placentation is found an monocarpellary pistils of Leguminosae (e.g., Pea, Acacia) and other plants (e.g., Larkspur).
NCERT Page-77/ N-66
Morphology of Plants
267223
Statement I: The fibrous root system is better adapted than the tap root system for anchorage to the soil.
Statement II: The primary root and its branches constitute tap root system. $\text{ }\!\!~\!\!\text{ }$
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-66 / N-58
Morphology of Plants
267225
Statement I: When ovules are born on central axis, it is called axile placentation
Statement II: In parietal placentation, the ovules develop on the outer wall of the ovary.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(a) When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentation is said to be axile, as in china rose, tomato and lemon. In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered but it becomes two chambered due to the formation of the false septum, e.g., mustard and Argemone.
(c) Floral features of family solanaceae
Inflorescence: Solitary and axillary
Flowers: Actinomorphic, bisexual flowers
Calyx: Calyx is composed of five sepals that are united and persistent. Aestivation is valvate.
Corolla: Corolla consists of five united petals with valvate aestivation.
Androecium: It consists of five epipetalous stamens.
Gynoecium: It consists of bicarpellary, syncarpous
superior ovary with axile placentation.
Fruits: Berry
Seeds: Numerous, endospermous
Floral formula: $\oplus {{\delta }_{+}}{{K}_{\left( 5 \right)}}{{C}_{\left( 5 \right)}}\cdot {{A}_{5}}{{G}_{\left( 2 \right)}}$
NCERT Page-77/ N-66
Morphology of Plants
267222
Marginal placentation is generally found in Family
1 Leguminosae
2 Cucurbitaceae
3 Malvaceae
4 Brassicaceae
Explanation:
(a) In marginal placentation, one or two alternate rows of ovules occur longitudinally along the ridge in the wall of the ovary in the area of fusion of its two margins or ventral suture. A true placental is believed to be absent. Ovary is unilocular. Marginal placentation is found an monocarpellary pistils of Leguminosae (e.g., Pea, Acacia) and other plants (e.g., Larkspur).
NCERT Page-77/ N-66
Morphology of Plants
267223
Statement I: The fibrous root system is better adapted than the tap root system for anchorage to the soil.
Statement II: The primary root and its branches constitute tap root system. $\text{ }\!\!~\!\!\text{ }$
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-66 / N-58
Morphology of Plants
267225
Statement I: When ovules are born on central axis, it is called axile placentation
Statement II: In parietal placentation, the ovules develop on the outer wall of the ovary.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(a) When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentation is said to be axile, as in china rose, tomato and lemon. In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered but it becomes two chambered due to the formation of the false septum, e.g., mustard and Argemone.
(c) Floral features of family solanaceae
Inflorescence: Solitary and axillary
Flowers: Actinomorphic, bisexual flowers
Calyx: Calyx is composed of five sepals that are united and persistent. Aestivation is valvate.
Corolla: Corolla consists of five united petals with valvate aestivation.
Androecium: It consists of five epipetalous stamens.
Gynoecium: It consists of bicarpellary, syncarpous
superior ovary with axile placentation.
Fruits: Berry
Seeds: Numerous, endospermous
Floral formula: $\oplus {{\delta }_{+}}{{K}_{\left( 5 \right)}}{{C}_{\left( 5 \right)}}\cdot {{A}_{5}}{{G}_{\left( 2 \right)}}$
NCERT Page-77/ N-66
Morphology of Plants
267222
Marginal placentation is generally found in Family
1 Leguminosae
2 Cucurbitaceae
3 Malvaceae
4 Brassicaceae
Explanation:
(a) In marginal placentation, one or two alternate rows of ovules occur longitudinally along the ridge in the wall of the ovary in the area of fusion of its two margins or ventral suture. A true placental is believed to be absent. Ovary is unilocular. Marginal placentation is found an monocarpellary pistils of Leguminosae (e.g., Pea, Acacia) and other plants (e.g., Larkspur).
NCERT Page-77/ N-66
Morphology of Plants
267223
Statement I: The fibrous root system is better adapted than the tap root system for anchorage to the soil.
Statement II: The primary root and its branches constitute tap root system. $\text{ }\!\!~\!\!\text{ }$
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-66 / N-58
Morphology of Plants
267225
Statement I: When ovules are born on central axis, it is called axile placentation
Statement II: In parietal placentation, the ovules develop on the outer wall of the ovary.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(a) When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentation is said to be axile, as in china rose, tomato and lemon. In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered but it becomes two chambered due to the formation of the false septum, e.g., mustard and Argemone.
(c) Floral features of family solanaceae
Inflorescence: Solitary and axillary
Flowers: Actinomorphic, bisexual flowers
Calyx: Calyx is composed of five sepals that are united and persistent. Aestivation is valvate.
Corolla: Corolla consists of five united petals with valvate aestivation.
Androecium: It consists of five epipetalous stamens.
Gynoecium: It consists of bicarpellary, syncarpous
superior ovary with axile placentation.
Fruits: Berry
Seeds: Numerous, endospermous
Floral formula: $\oplus {{\delta }_{+}}{{K}_{\left( 5 \right)}}{{C}_{\left( 5 \right)}}\cdot {{A}_{5}}{{G}_{\left( 2 \right)}}$
NCERT Page-77/ N-66
Morphology of Plants
267222
Marginal placentation is generally found in Family
1 Leguminosae
2 Cucurbitaceae
3 Malvaceae
4 Brassicaceae
Explanation:
(a) In marginal placentation, one or two alternate rows of ovules occur longitudinally along the ridge in the wall of the ovary in the area of fusion of its two margins or ventral suture. A true placental is believed to be absent. Ovary is unilocular. Marginal placentation is found an monocarpellary pistils of Leguminosae (e.g., Pea, Acacia) and other plants (e.g., Larkspur).
NCERT Page-77/ N-66
Morphology of Plants
267223
Statement I: The fibrous root system is better adapted than the tap root system for anchorage to the soil.
Statement II: The primary root and its branches constitute tap root system. $\text{ }\!\!~\!\!\text{ }$
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(d)
NCERT Page-66 / N-58
Morphology of Plants
267225
Statement I: When ovules are born on central axis, it is called axile placentation
Statement II: In parietal placentation, the ovules develop on the outer wall of the ovary.
1 Both Statement I and Statement II are incorrect
2 Statement I is correct but Statement II is incorrect
3 Statement I is incorrect but Statement II is correct
4 Both Statement I and Statement II are correct
Explanation:
(a) When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentation is said to be axile, as in china rose, tomato and lemon. In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered but it becomes two chambered due to the formation of the false septum, e.g., mustard and Argemone.
