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प्रश्न
What does germination mean?
उत्तर १
Zygote utilizes food stored in endosperm of seed and a new plantlet is formed. This is called as seed germination.
उत्तर २
The process through which seeds develop into seedlings is known as germination.
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संबंधित प्रश्न
(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?
The fusion of male and female gametes is termed as ______.
Explain what you understand by sexual reproduction.
Name the part made up of the stigma, style and ovary.
Where are a plant's sex organs located?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
Fill in the following blank with suitable word :
The name of the structure in the flower in which the male gamete is formed is...........
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
What is made in ovary of a flower?
Explain the terms 'self pollination'
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
Describe the process of fertilisation in a flower with the help of labelled diagrams.
In what ways is fertilisation in a plant different from fertilisation in a human?
Fill in the blank by selecting suitable word:
A flower bearing only male or female parts is known as __________ flower.
What are the male and female gametes in a flowering plant?
“Cell division is a type of reproduction in unicellular organism.” Justify.
List any two differences between pollination and fertilisation.
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.
Bisexual : Hibiscus : : Unisexual : ___________
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 type of development is observed in male gametophytes of plants?
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
Conidia are formed endogenously while zoospores are formed endogenously.
The seed that contains the future plant is called the ______
The process of release of eggs from the ovary is called ______
Pollen grains are produced by ______
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?
Double fertilization means ______.
Sketch and label the essential and accessory whorls of flower.
What is the structural unit of sexual reproduction in plant?
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
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.
The pollen tube usually enters the embryo sac ______.
