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प्रश्न
Find the odd one out:
पर्याय
Stigma
Anther
Style
Ovary
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उत्तर
Anther
APPEARS IN
संबंधित प्रश्न
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
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.
Name and differentiate between the two modes of pollination in flowering plants.
Mention the changes a flower undergoes after fertilisation.
The fusion of male and female gametes is termed as ______.
Explain what you understand by sexual reproduction.
Name the swollen lower part of the carpel.
What is the name of female organ of a flower (other than carpel)?
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
Explain the term 'fertilisation'.
What type of plants reproduce by sexual reproduction method?
What is meant by ‘unisexual flowers’?
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 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.
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)
The part of a seed which grows and develops into root on germination is :
(a) cotyledon
(b) plumule
(c) follicle
(d) radicle
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?
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:
Find the odd-one out, giving reason:
Anther, pollen grain, ovule male gamete
Explain the process of fertilisation in flowers.
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?
Describe an activity to demonstrate phototropism.
Explain sexual reproduction in plants.
Give scientific reason.
Fertilization in plants is called double fertilization.
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.
In which part of the flower germination of pollen grains takes place?
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
Which of the following are the chemical components of the wall of pollen tube?
The 3-celled egg apparatus at the micropylar end comprises of ______
Conidia are formed endogenously while zoospores are formed endogenously.
The flower of the Hibiscus plant is ______
Pollen grains are produced by ______
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
