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प्रश्न
Define.
Inflorescence
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उत्तर
A specialised axis or branch over which flowers are produced or borne in definite manner is known as inflorescence.
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संबंधित प्रश्न
Name the parts labelled as A, B, C and D in the diagram given below:-
The anther contains ______.
The reproductive part of a plant is the ______.
The process of fusion of the male and female gametes is called ______.
Name the part made up of the stigma, style and ovary.
What is the function of a flower?
Explain the terms 'cross-pollination'?
How do the insects help in cross-pollination?
How is the process of pollination different from fertilization?
Explain the term 'fertilisation'.
Name the part of a seed which grows into shoot.
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.
One of the following occurs in the reproductive system of flowering plants as well as that of humans. This is :
(a) vas deferens
(b) anther
(c) ovary
(d) style
In what ways is fertilisation in a plant similar to fertilisation in a human?
Put a tick mark (✓) against the correct alternative in the following statement
Reproductive whorls of a flower are:
Fill in the blank by selecting suitable word:
A flower bearing only male or female parts is known as __________ flower.
Mention the function of Flower.
Mention the function of Anther.
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.
(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 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
What is phototropism?
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Find the odd one out:
Pollen tube reaches the embryo sac via style.
Write the events involved in the sexual reproduction of a flowering plant.
a. Discuss the first event and write the types.
b. Mention the advantages and the disadvantages of that event.
Antipodal cells are present towards the ______ in an anatropous ovule.
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
Gloriosa superba exhibits ______.
In a flowering plant, archesporium gives rise to ______.
The process of release of eggs from the ovary is called ______
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Double fertilization means ______.
Give any two examples of agents of pollination.
