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प्रश्न
Pollen tube reaches the embryo sac via style.
पर्याय
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
Name the parts labelled as A, B, C and D in the diagram given below:
Mention the changes a flower undergoes after fertilisation.
How is the process of pollination different from fertilization?
Explain what you understand by sexual reproduction.
How does the process of fertilisation take place in flowers?
Mature ovary forms the ______.
State the name of the functional unit concerned with sexual reproduction.
Where is the male gamete formed in flowering plants?
What is made in ovary of a flower?
How is the process of pollination different from fertilization?
What type of plants reproduce by sexual reproduction method?
How does pollination occur?
One of the following occurs in the reproductive system of flowering plants as well as that of humans. This is :
(a) vas deferens
(b) anther
(c) ovary
(d) style
The correct sequence of reproductive stages occurring in flowering plants is ______.
The part of a seed which grows and develops into root on germination is :
(a) cotyledon
(b) plumule
(c) follicle
(d) radicle
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Mention the function of Anther.
Mention the function of Stigma.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
Explain sexual reproduction in plants.
Prepare a slogan for campaign against female foeticide.
Mention pollination types.
Answer the following question.
How does suitable pollination lead to fertilization?
__________ is present in unisexual flower.
Find an odd one out.
Explain the sexual reproduction process in plants with a diagram.
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
| 4. | Hooks | Spore |
| 5. | Sucker | Bignonia |
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
Which of the following is the outermost protective layer of anther?
In a flowering plant, archesporium gives rise to ______.
Which among the following statements are true for sexual reproduction in flowering plants?
- It requires two types of gametes
- Fertilisation is a compulsory event
- It always results in formation of zygote
- Offspring formed are clones
What are the agents for pollination?
Type of sexual reproduction is ______.
Explain the post fertilization changes that occur in the ovary of a flower.
