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प्रश्न
Where are a plant's sex organs located?
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उत्तर
A plant's sex organs are located in its flower.
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संबंधित प्रश्न
Name and differentiate between the two modes of pollination in flowering plants.
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
A flower may have either male or female reproductive parts. Such a flower is called ______.
Sketch the reproductive parts of a flower.
Name the part made up of the stigma, style and ovary.
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
How do the insects help in cross-pollination?
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)
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Mention the function of Flower.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Find an odd one out.
What does germination mean?
Write the functions of sepals
Observe the figure below. Write functions of the labelled parts.
Pollen grains are produced by ______
Length of pollen tube depends on the distance between ______
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.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
