62532
Name the cells of mature pollen grain when you observe under microscope with the following characters respectively.
1 Generative cell, Gametes
2 Vegetative cell, Gametes
3 Vegetative cell Generative cell
4 Generative cell, Vegetative cell
Explanation:
C When pollen grain is mature it contains two cells, the vegetative cell and generative cell. The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in cytoplasm of vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60 percent of angiosperms, pollen grain are shed at this 2-celled stage.
AP EAPCET-23.05.2023
Morphology of Plants
62581
Which one of the following floral characters, is shared by Ruscus and ray florets of Tridax?
1 Nature of Perianth
2 Unisexuality
3 Zygomorphy
4 Number of stigmas
Explanation:
B Ruscus is a member of family Liliaceae. It has unisexual flowers. Ray florets of Tridax are also unisexual flowers. Thus, unisexuality is the floral character of Tridax.
AP EAMCET-2003
Morphology of Plants
62533
Stalk of the stamen is
1 Petiole
2 Filament
3 Peduncle
4 Pedicel
Explanation:
B The presence of long stalk in stamen is called filament. Filament provide support to anthers and they carry nutrients to anther where pollen develop. Petiole - The stalk of the leaf when present leaf described as petiole. When absent leaf is called sessile petiole is winged, swollen, spongy. In Acacia petioles are modified into green leaf like structure and perform the function of leaf called phyllode. Pedicel - The pedicel is a stalk or stem that supports a single flower. It connects the single flower to the inflorescence. The flowers without pedicels are called sessile. (for example - sunflower). Peduncle - The peduncle is the main stalk that supports a solitary flower or an inflorescence later it also supports the fruits.
Karnataka CET-2022
Morphology of Plants
62546
Intercalary meristem occurs in:
1 mint
2 grasses
3 both (a) \& (b)
4 none of these
Explanation:
C Intercalary meristem occurs in mint, grasses. Intercalary meristem: It is a type of primary meristematic tissue containing cells that can divide and promote the growth of the plant. They are located at the base of internode. Function: Promote the lengthening of the stem and increase the height of the plant.
62532
Name the cells of mature pollen grain when you observe under microscope with the following characters respectively.
1 Generative cell, Gametes
2 Vegetative cell, Gametes
3 Vegetative cell Generative cell
4 Generative cell, Vegetative cell
Explanation:
C When pollen grain is mature it contains two cells, the vegetative cell and generative cell. The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in cytoplasm of vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60 percent of angiosperms, pollen grain are shed at this 2-celled stage.
AP EAPCET-23.05.2023
Morphology of Plants
62581
Which one of the following floral characters, is shared by Ruscus and ray florets of Tridax?
1 Nature of Perianth
2 Unisexuality
3 Zygomorphy
4 Number of stigmas
Explanation:
B Ruscus is a member of family Liliaceae. It has unisexual flowers. Ray florets of Tridax are also unisexual flowers. Thus, unisexuality is the floral character of Tridax.
AP EAMCET-2003
Morphology of Plants
62533
Stalk of the stamen is
1 Petiole
2 Filament
3 Peduncle
4 Pedicel
Explanation:
B The presence of long stalk in stamen is called filament. Filament provide support to anthers and they carry nutrients to anther where pollen develop. Petiole - The stalk of the leaf when present leaf described as petiole. When absent leaf is called sessile petiole is winged, swollen, spongy. In Acacia petioles are modified into green leaf like structure and perform the function of leaf called phyllode. Pedicel - The pedicel is a stalk or stem that supports a single flower. It connects the single flower to the inflorescence. The flowers without pedicels are called sessile. (for example - sunflower). Peduncle - The peduncle is the main stalk that supports a solitary flower or an inflorescence later it also supports the fruits.
Karnataka CET-2022
Morphology of Plants
62546
Intercalary meristem occurs in:
1 mint
2 grasses
3 both (a) \& (b)
4 none of these
Explanation:
C Intercalary meristem occurs in mint, grasses. Intercalary meristem: It is a type of primary meristematic tissue containing cells that can divide and promote the growth of the plant. They are located at the base of internode. Function: Promote the lengthening of the stem and increase the height of the plant.
62532
Name the cells of mature pollen grain when you observe under microscope with the following characters respectively.
1 Generative cell, Gametes
2 Vegetative cell, Gametes
3 Vegetative cell Generative cell
4 Generative cell, Vegetative cell
Explanation:
C When pollen grain is mature it contains two cells, the vegetative cell and generative cell. The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in cytoplasm of vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60 percent of angiosperms, pollen grain are shed at this 2-celled stage.
AP EAPCET-23.05.2023
Morphology of Plants
62581
Which one of the following floral characters, is shared by Ruscus and ray florets of Tridax?
1 Nature of Perianth
2 Unisexuality
3 Zygomorphy
4 Number of stigmas
Explanation:
B Ruscus is a member of family Liliaceae. It has unisexual flowers. Ray florets of Tridax are also unisexual flowers. Thus, unisexuality is the floral character of Tridax.
AP EAMCET-2003
Morphology of Plants
62533
Stalk of the stamen is
1 Petiole
2 Filament
3 Peduncle
4 Pedicel
Explanation:
B The presence of long stalk in stamen is called filament. Filament provide support to anthers and they carry nutrients to anther where pollen develop. Petiole - The stalk of the leaf when present leaf described as petiole. When absent leaf is called sessile petiole is winged, swollen, spongy. In Acacia petioles are modified into green leaf like structure and perform the function of leaf called phyllode. Pedicel - The pedicel is a stalk or stem that supports a single flower. It connects the single flower to the inflorescence. The flowers without pedicels are called sessile. (for example - sunflower). Peduncle - The peduncle is the main stalk that supports a solitary flower or an inflorescence later it also supports the fruits.
Karnataka CET-2022
Morphology of Plants
62546
Intercalary meristem occurs in:
1 mint
2 grasses
3 both (a) \& (b)
4 none of these
Explanation:
C Intercalary meristem occurs in mint, grasses. Intercalary meristem: It is a type of primary meristematic tissue containing cells that can divide and promote the growth of the plant. They are located at the base of internode. Function: Promote the lengthening of the stem and increase the height of the plant.
62532
Name the cells of mature pollen grain when you observe under microscope with the following characters respectively.
1 Generative cell, Gametes
2 Vegetative cell, Gametes
3 Vegetative cell Generative cell
4 Generative cell, Vegetative cell
Explanation:
C When pollen grain is mature it contains two cells, the vegetative cell and generative cell. The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus. The generative cell is small and floats in cytoplasm of vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus. In over 60 percent of angiosperms, pollen grain are shed at this 2-celled stage.
AP EAPCET-23.05.2023
Morphology of Plants
62581
Which one of the following floral characters, is shared by Ruscus and ray florets of Tridax?
1 Nature of Perianth
2 Unisexuality
3 Zygomorphy
4 Number of stigmas
Explanation:
B Ruscus is a member of family Liliaceae. It has unisexual flowers. Ray florets of Tridax are also unisexual flowers. Thus, unisexuality is the floral character of Tridax.
AP EAMCET-2003
Morphology of Plants
62533
Stalk of the stamen is
1 Petiole
2 Filament
3 Peduncle
4 Pedicel
Explanation:
B The presence of long stalk in stamen is called filament. Filament provide support to anthers and they carry nutrients to anther where pollen develop. Petiole - The stalk of the leaf when present leaf described as petiole. When absent leaf is called sessile petiole is winged, swollen, spongy. In Acacia petioles are modified into green leaf like structure and perform the function of leaf called phyllode. Pedicel - The pedicel is a stalk or stem that supports a single flower. It connects the single flower to the inflorescence. The flowers without pedicels are called sessile. (for example - sunflower). Peduncle - The peduncle is the main stalk that supports a solitary flower or an inflorescence later it also supports the fruits.
Karnataka CET-2022
Morphology of Plants
62546
Intercalary meristem occurs in:
1 mint
2 grasses
3 both (a) \& (b)
4 none of these
Explanation:
C Intercalary meristem occurs in mint, grasses. Intercalary meristem: It is a type of primary meristematic tissue containing cells that can divide and promote the growth of the plant. They are located at the base of internode. Function: Promote the lengthening of the stem and increase the height of the plant.
