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प्रश्न
The anther contains ______.
पर्याय
Sepals
Ovules
Carpel
Pollen grains
उत्तर
The anther contains pollen grains.
Explanation:
An anther contains male gametes called pollen grains. An anther is a component of a flower's stamen, which is its male reproductive organ. Anthers are bilobed and have four pollen sacs in the majority of plants. These pollen sacs undergo meiosis, which results in the production of haploid pollen grains.
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संबंधित प्रश्न
Name and differentiate between the two modes of pollination in flowering plants.
Mention the changes a flower undergoes after fertilisation.
The reproductive part of a plant is the ______.
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which grows into shoot.
(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?
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
The correct sequence of reproductive stages occurring in flowering plants is ______
In what ways is fertilisation in a plant different from fertilisation in a human?
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
Sketch the labeled diagram:
Flower with its sexual reproductive organs
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Pollen grains from anther are transferred to the stigma.
What does germination mean?
Identify the parts A, B, C, and D?
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 ovule of an angiosperm is technically equivalent to ______
In human beings, fertilization occurs in the ______
Pollen grains are produced by ______
