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प्रश्न
Accessory whorls : Calyx and corolla : : essential whorls : ______________
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उत्तर
Accessory whorls : Calyx and corolla : : essential whorls : Androecium and gynoecium
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संबंधित प्रश्न
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
Name the parts A, B and C shown in the following diagram and state one function of each.
Name the parts labelled as A, B, C and D in the diagram given below:
The anther contains ______.
The process of fusion of the male and female gametes is called ______.
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
What is made in anther of a flower?
Name the part of a seed which grows into shoot.
What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.
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.
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
Find the odd-one out, giving reason:
Anther, pollen grain, ovule male gamete
Mention the function of Flower.
Mention the function of Stigma.
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
Identify A, B, C and D in the given diagram and write their names.
(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.
“Cell division is a type of reproduction in unicellular organism.” Justify.
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Write the names of male and female reproductive parts of a flower.
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Sketch the labelled diagram.
Flower with its sexual reproductive organs.
Find an odd one out.
Pollen tube reaches the embryo sac via style.
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.
The 3-celled egg apparatus at the micropylar end comprises of ______
Identify the female gametophyte in angiosperms.
Pineapple fruit develops from ______.
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
Where is the zygote located in the flower after fertilization?
Sketch and label the essential and accessory whorls of flower.
What are the agents for pollination?
Triple fusion involves ______.
Explain the post fertilization changes that occur in the ovary of a flower.
The number of pollen sacs in a dithecous anther is ______.
