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प्रश्न
Pollen grains from anther are transferred to the stigma.
विकल्प
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
Mention the changes a flower undergoes after fertilisation.
The process of fusion of the male and female gametes is called ______.
Mature ovary forms the ______.
Where are a plant's sex organs located?
What is the function of a flower?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
Explain the terms 'self pollination'
What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.
Name the part of a seed which grows into root.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
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
Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flower possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (i), (iii) and (iv)
In the figure given alongside, the parts marked A, B and C are sequentially :
(a) cotyledon, plumule and radicle
(b) plumule, radicle and cotyledon
(c) plumule, cotyledon and radicle
(d) radicle, cotyledon and plumule
The correct sequence of reproductive stages occurring in flowering plants is ______
In what ways is fertilisation in a plant different from fertilisation in a human?
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
What are the male and female gametes in a flowering plant?
(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
Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:
(a) Female germ cell
(b) Male germ cell
(c) Ovary
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Explain sexual reproduction in plants.
Answer the following question.
How does suitable pollination lead to fertilization?
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Find an odd one out.
Draw a neat and labelled diagram.
Double fertilization in angiosperms
Identify the parts A, B, C, and D?
Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
The anther wall consists of four wall layers where ______
Which of the following is the outermost protective layer of anther?
Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages?
Where is the zygote located in the flower after fertilization?
What is the structural unit of sexual reproduction in plant?
State the post-fertilisation changes that lead to fruit formation in plants.
