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प्रश्न
State the name of the functional unit concerned with sexual reproduction.
उत्तर
In plants, the flower is the functional unit concerned with the sexual reproduction of plants.
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संबंधित प्रश्न
Name the parts A, B and C shown in the following diagram and state one function of each.
State the function of flowers in the flowering plants.
Name the male part of the flower.
Where is the female gamete formed in flowering plants?
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
Explain the terms 'self pollination'
How do the insects help in cross-pollination?
(a) Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
(b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
(c) What are (i) stamen, and (ii) carpel, in a flower?
(d) What is the other name of carpel of a flower?
(e) What is the name of yellow powdery substance present in the anther of a flower?
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?
In what ways is fertilisation in a plant different from fertilisation in a human?
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
Mention the function of Anther.
The students of a class were asked by the teacher to study the different parts of an embryo of an angiosperm. Given below are the essential steps for the experiment :
A. Soak the seeds in plain water and keep them overnight.
B. Cut open the soaked seed and observe its different parts.
C. Take some healthy seeds in a petri-dish.
D. Drain the excess water, cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(a) C, A, D, B
(b) C, D, A, B
(c) A, C, D, B
(d) A, C, B, D
Write the names of male and female reproductive parts of a flower.
What is phototropism?
Explain sexual reproduction in plants.
What is meant by pollination?
Answer the following question.
List two agents of pollination?
Find an odd one out.
Calyx : Sepals : : Corolla : ________________
Give scientific reason.
Fertilization in plants is called double fertilization.
Explain the sexual reproduction process in plants with a diagram.
The male reproductive part of a flower is ______.
The anther wall consists of four wall layers where ______
Antipodal cells are present towards the ______ in an anatropous ovule.
Variations occur as a result of ______
Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages?
The ovaries of different flowers may contain
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Double fertilization is exhibited by ______
Double fertilization is essential for formation of ______.
Double fertilization means ______.
Sketch and label the essential and accessory whorls of flower.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
