341589
Biologists consider flowers to be objects of
1 Morphological marvels
2 Embryological marvels
3 Sites of sexual reproduction
4 All of these
Explanation:
To a biologist, flowers are morphological and embryological marvels and the sites of sexual reproduction.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341590
In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is:
1 Calyx, corolla, androecium and gynoecium
2 Calyx, corolla, gynoecium and androecium
3 Gynoecium, androecium, corolla and calyx
4 Androecium, gynoecium, corolla and calyx
Explanation:
Calyx, corolla, androecium and gynoecium as ovary is superior in hypogynous flower.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341591
The diagram given below denotes the various parts of a typical flower. Identify the labelled parts A, B, C and D and choose the correct option:
1 A - Petals; B - Sepals; C - Stamens; D Pistil
2 A - Sepals; B - Pistil; C - Petals; D Stamens
3 A - Sepals; B - Pistil; C - Stamens; D Petals
4 A - Sepals; B - Petals; C - Pistil; D Stamens
Explanation:
The four whorls of a typical flower are calyx (sepals), corolla (petals), androecium (stamens) and gynoecium (pistils/carpels). Sepals labelled as A and petals labelled as D form the outer whorls. Stamens labelled as C and pistils labelled as B form the inner whorls. The inner two whorls are the reproductive organs in which the gametes are formed. Hence, flowers serve as sites of sexual reproduction.
341589
Biologists consider flowers to be objects of
1 Morphological marvels
2 Embryological marvels
3 Sites of sexual reproduction
4 All of these
Explanation:
To a biologist, flowers are morphological and embryological marvels and the sites of sexual reproduction.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341590
In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is:
1 Calyx, corolla, androecium and gynoecium
2 Calyx, corolla, gynoecium and androecium
3 Gynoecium, androecium, corolla and calyx
4 Androecium, gynoecium, corolla and calyx
Explanation:
Calyx, corolla, androecium and gynoecium as ovary is superior in hypogynous flower.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341591
The diagram given below denotes the various parts of a typical flower. Identify the labelled parts A, B, C and D and choose the correct option:
1 A - Petals; B - Sepals; C - Stamens; D Pistil
2 A - Sepals; B - Pistil; C - Petals; D Stamens
3 A - Sepals; B - Pistil; C - Stamens; D Petals
4 A - Sepals; B - Petals; C - Pistil; D Stamens
Explanation:
The four whorls of a typical flower are calyx (sepals), corolla (petals), androecium (stamens) and gynoecium (pistils/carpels). Sepals labelled as A and petals labelled as D form the outer whorls. Stamens labelled as C and pistils labelled as B form the inner whorls. The inner two whorls are the reproductive organs in which the gametes are formed. Hence, flowers serve as sites of sexual reproduction.
341589
Biologists consider flowers to be objects of
1 Morphological marvels
2 Embryological marvels
3 Sites of sexual reproduction
4 All of these
Explanation:
To a biologist, flowers are morphological and embryological marvels and the sites of sexual reproduction.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341590
In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is:
1 Calyx, corolla, androecium and gynoecium
2 Calyx, corolla, gynoecium and androecium
3 Gynoecium, androecium, corolla and calyx
4 Androecium, gynoecium, corolla and calyx
Explanation:
Calyx, corolla, androecium and gynoecium as ovary is superior in hypogynous flower.
NCERT Exemplar
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341591
The diagram given below denotes the various parts of a typical flower. Identify the labelled parts A, B, C and D and choose the correct option:
1 A - Petals; B - Sepals; C - Stamens; D Pistil
2 A - Sepals; B - Pistil; C - Petals; D Stamens
3 A - Sepals; B - Pistil; C - Stamens; D Petals
4 A - Sepals; B - Petals; C - Pistil; D Stamens
Explanation:
The four whorls of a typical flower are calyx (sepals), corolla (petals), androecium (stamens) and gynoecium (pistils/carpels). Sepals labelled as A and petals labelled as D form the outer whorls. Stamens labelled as C and pistils labelled as B form the inner whorls. The inner two whorls are the reproductive organs in which the gametes are formed. Hence, flowers serve as sites of sexual reproduction.
