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प्रश्न
Calyx : Sepals : : Corolla : ________________
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उत्तर
Calyx : Sepals : : Corolla : Petals
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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
Name the parts A, B and C shown in the following diagram and state one function of each.
Give one example of a unisexual flower.
Write the names of those parts of a flower which serve the same function as the following do in the animals :
(i) testis,
(ii) sperm,
(iii) ovary,
(iv) egg
Name the male part of the flower.
Where are the pollen grains produced?
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
How is the process of pollination different from fertilization?
Give some examples of different modes of fertilisation in nature?
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?
Describe the process of fertilisation in a flower with the help of labelled diagrams.
What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?
Which of the following statements are true for sexual reproduction in flowering plants?
(i) it requires two types of gametes
(ii) fertilisation is a compulsory event
(iii) it always results in the formation of zygote
(iv) offsprings formed are clones
(a) (i) and (iv)
(b) (i), (ii) and (iv)
(c) (i), (ii) and (iii)
(d) (ii), (iii) and (iv)
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
Identify A, B, C and D in the given diagram and write their names.
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Write the names of male and female reproductive parts of a flower.
What is phototropism?
Mention pollination types.
__________ is present in unisexual flower.
Find an odd one out.
Write the functions of sepals
Explain the sexual reproduction process in plants with a diagram.
Where does the endothecium layer of anther lobes is present?
The anther wall consists of four wall layers where ______
Which of the following is the outermost protective layer of anther?
Which type of development is observed in male gametophytes of plants?
Gloriosa superba exhibits ______.
Variations occur as a result of ______
Length of pollen tube depends on the distance between ______
Which among the following statements are true for unisexual flowers?
- They possess both stamen and pistil
- They possess either stamen or pistil
- They exhibit cross pollination
- Unisexual flowers possessing only stamens cannot produce fruits
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
Double fertilization is essential for formation of ______.
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
