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प्रश्न
In a plant flower the female whorl is ______.
पर्याय
Corolla
Calyx
Androecium
Gynoecium
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उत्तर
In a plant flower the female whorl is Gynoecium.
APPEARS IN
संबंधित प्रश्न
Name the parts A, B and C shown in the diagram and write their functions.
How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
(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?
Sketch the reproductive parts of a flower.
The reproductive part of a plant is the ______.
Where are the pollen grains produced?
Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
Explain the terms 'self pollination'
What type of plants reproduce by sexual reproduction method?
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
Put a tick mark (✓) against the correct alternative in the following statement
Reproductive whorls of a flower are:
Multiple choice question. Tick (✓) the correct choice:
Unisexual flowers are found in
- mulberry
- mustard
- pea
- sunflower
Fill in the blanks:
A stamen consists of ______ and ________.
Mention the function of Flower.
Mention the function of Anther.
Mention the function of Stigma.
What are the male and female gametes in a flowering plant?
Draw a labelled diagram of a bisexual flower.
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
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
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
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
List any two differences between pollination and fertilization.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Answer the following question.
List two agents of pollination?
Calyx : Sepals : : Corolla : ________________
What does germination mean?
Which of the following are the chemical components of the wall of pollen tube?
Which of the following is the outermost protective layer of anther?
How many middle layers are generally present in the wall of the anther lobes?
Which type of development is observed in male gametophytes of plants?
Flowers showing ornithophily show few characteristic like ______.
Length of pollen tube depends on the distance between ______
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
Double fertilization is essential for formation of ______.
Double fertilization means ______.
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
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.
