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प्रश्न
What is made in ovary of a flower?
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उत्तर
Female gametes called eggs are produced in the ovary.
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संबंधित प्रश्न
A student while observing an embryo of a pea seed in the laboratory listed various parts of the embryo as given below:
Testa, Tegmen, Radicle, Plumule, Micropyle, Cotyledon.
On examining the list the teacher remarked that only three parts are correct. Select three correct parts from the above list:
(a) Testa, Radicle, Cotyleddon
(b) Tegmen, Radicle, Micropyle
(c) Cotyledon, Plumule, Testa
(d) Radicle, Cotyledon, Plumule
Give one example of a unisexual flower.
What is the name of female part of a flower?
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.
When an insect sits on the flower of a plant then some particles A present in the top of little stalks in the flower attach to its body hair. When this insect now sits on the flower of another similar plant, then particles A attached to the hair of insect are put on the top of a flask-shaped organ at the centre of flower. The particle A grows a long tube b from the top of flask-shaped organ through which C moves down and reaches the bottom part of flask-shaped organ. Here C fuses with the nucleus of d contained in structure E. the fusion of C and D forms a new cell f which grows and develops into a seed of the plant.
(a) What are particles A? What is the process of transferring A from one flower to another flower of similar plant by the insect known as?
(b) What is the name of tube B?
(c) What is C which moves down through the tube B?
(d) Name D and E.
(e) What is F?
(a) Identify A, B and C in the given diagram and write their functions.
(b) Mention the role of gamete and zygote in sexually reproducing organisms.
In the figure, the parts marked A, B and C are sequentially:
(A) Plumule, Radicle and Cotyledon
(B) Radicle, Plumule and Cotyledon
(C) Plumule, Cotyledon and Radicle
(D) Radicle, Cotyledon and Plumule
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Answer the following question.
How does suitable pollination lead to fertilization?
__________ is present in unisexual flower.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
| 4. | Hooks | Spore |
| 5. | Sucker | Bignonia |
The essential parts of a flower are ______.
Antipodal cells are present towards the ______ in an anatropous ovule.
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
The process of release of eggs from the ovary is called ______
Pollen grains are produced by ______
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
Double fertilization is essential for formation of ______.
