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प्रश्न
Sketch the labeled diagram:
Flower with its sexual reproductive organs
उत्तर
Flower with its sexual reproductive organs
APPEARS IN
संबंधित प्रश्न
Answer the following question.
State significance of pollination.
Explain what you understand by sexual reproduction.
Mature ovary forms the ______.
Name the male part of the flower.
What is the name of female part of a flower?
Explain the terms 'cross-pollination'?
How is the process of pollination different from fertilization?
Explain the term 'fertilisation'.
Give some examples of different modes of fertilisation in nature?
Name the part of a seed which contains stored food.
Name the part of a seed which grows into shoot.
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?
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
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.
The flask-shaped organ A at the centre of a flower is surrounded by a number of little stalks B having swollen tops which lie just inside the ring of petals.
(a) Name A. What are the various parts of A?
(b) Which part of A contains gametes?
(c) Name B. What is the swollen top of B known as?
(d) What does the swollen top of b contain?
(e) Out of A and B, which one is (i) male part, and (ii) female part of the flower?
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
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
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
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.
Give one example each of unisexual and bisexual flowers. Differentiate between the two types of pollination that occur in flowers. What happens when a pollen lands on a suitable stigma? Write about the events that occur till the seed formation in 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.
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Prepare a slogan for campaign against female foeticide.
Differentiate between self-pollination and cross-pollination.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Pollen grains from anther are transferred to the stigma.
Define.
Inflorescence
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.
Gloriosa superba exhibits ______.
Flowers showing ornithophily show few characteristic like ______.
The ovaries of different flowers may contain
Double fertilization means ______.
What is puberty?
