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प्रश्न
State the name of the functional unit concerned with sexual reproduction.
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उत्तर
In plants, the flower is the functional unit concerned with the sexual reproduction of plants.
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संबंधित प्रश्न
A student has to perform the experiment "To identify the different parts of an embryo of a dicot seed." Select from the following an appropriate group of seeds:
(a) Pea, gram, wheat
(b) Red kidney bean, maize, gram
(c) Maize, wheat, red kidney bean
(d) Red kidney bean, pea, gram
Name the parts labelled as A, B, C and D in the diagram given below:
You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
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 swollen lower part of the carpel.
Where are a plant's sex organs located?
Where is the male gamete formed in flowering plants?
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
Explain the term 'fertilisation'.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
Which of the following is the correct sequence of events of sexual reproduction in a flower?
(a) pollination, fertilisation, seed, embryo
(b) seed, embryo, fertilisation, pollination
(c) pollination, fertilisation, embryo, seed
(d) embryo, seed, pollination, fertilisation
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.
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
What part is played by stamens and carpels in reproduction?
Explain the process of fertilisation in flowers.
(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.
Describe an activity to demonstrate phototropism.
List any two differences between pollination and fertilization.
Find an odd one out.
Bisexual : Hibiscus : : Unisexual : ___________
Define.
Inflorescence
Write the functions of sepals
Give scientific reason.
Flower is a structural unit of 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.
Discuss the first event and write the types.
Antipodal cells are present towards the ______ in an anatropous ovule.
How many middle layers are generally present in the wall of the anther lobes?
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
Variations occur as a result of ______
Which out of the following processes does not lead to the formation of clones.
Double fertilization is essential for formation of ______.
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
The number of pollen sacs in a dithecous anther is ______.
