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प्रश्न
Write the functions of sepals
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उत्तर
Sepals are responsible for the protection of inner whorls.
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संबंधित प्रश्न
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
State significance of pollination.
Mention the changes a flower undergoes after fertilisation.
Explain what you understand by sexual reproduction.
Name the part made up of the stigma, style and ovary.
What is the name of female part of a flower?
Fill in the following blank with suitable word :
The name of the structure in the flower in which the male gamete is formed is...........
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
Give some examples of different modes of fertilisation in nature?
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which contains stored food.
Name the part of a seed which grows into shoot.
In the figure given alongside, the parts marked A, B and C are sequentially:
What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.
Multiple choice question. Tick (✓) the correct choice:
Unisexual flowers are found in
- mulberry
- mustard
- pea
- sunflower
Mention the function of Flower.
What part is played by stamens and carpels in reproduction?
Explain the process of fertilisation in flowers.
“Cell division is a type of reproduction in unicellular organism.” Justify.
Describe an activity to demonstrate phototropism.
A student is observing the temporary mount of a leaf peel under a microscope. Draw a labelled diagram of the structure of stomata as seen under the microscope
Differentiate between self-pollination and cross-pollination.
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Give scientific reason.
Fertilization in plants is called double fertilization.
Observe the figure below. Write functions of the labelled parts.
The essential parts of a flower are ______.
Where does the endothecium layer of anther lobes is present?
Which of the following are the chemical components of the wall of pollen tube?
Which of the following is the outermost protective layer of anther?
Identify the female gametophyte in angiosperms.
Gloriosa superba exhibits ______.
In a flowering plant, archesporium gives rise to ______.
In human beings, fertilization occurs in the ______
Where is the zygote located in the flower after fertilization?
Double fertilization is essential for formation of ______.
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
 |
 |
 |
In male reproductive whorl of a flower the archesporial cells are formed by ______.
