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Question
Pollen grains from anther are transferred to the stigma.
Options
True
False
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Solution
True
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RELATED QUESTIONS
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
(i) Name the part marked 'A' in the diagram.
(ii) How dose 'A' reachese part 'B'?
(iii) State the importance of the part 'C'.
(iv) What happens to the part marked 'D' after fertilisation is over?
Name the part made up of the stigma, style and ovary.
Where is the female gamete formed in flowering plants?
Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
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Flowering plants reproduce by ...........method of reproduction.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
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The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is...........
How do the insects help in cross-pollination?
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.
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A carpel consists of ________ , ________ and ________.
Fill in the blank:
Seeds are formed from________.
Explain the process of fertilisation in flowers.
(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.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Find the odd one out:
Bisexual : Hibiscus : : Unisexual : ___________
Observe the figure below. Write functions of the labelled parts.
The essential parts of a flower are ______.
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.
Where does the endothecium layer of anther lobes is present?
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
How many middle layers are generally present in the wall of the anther lobes?
In a flowering plant, archesporium gives rise to ______.
Variations occur as a result of ______
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
Where is the zygote located in the flower after fertilization?
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
Double fertilization means ______.
Give any two examples of agents of pollination.
In a plant flower the female whorl is ______.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Triple fusion involves ______.
In flowering plants, the pollen grains are transferred to stigma by pollination but the female germ cells are present in the ovary.
Explain with the help of a labelled diagram (only concerned parts), how the male germ cell reaches the ovary.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
In male reproductive whorl of a flower the archesporial cells are formed by ______.
