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प्रश्न
(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?
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उत्तर
(a) A flower
(b) (i) The corolla
(ii) The calyx
(c) (i) Stamen is the male reproductive organ in a flower.
(ii) Carpel is the female reproductive organ in a flower.
(d) The other name of carpel is pistil.
(e) The yellow powdery substance present in the anther of a flower are pollen grains.
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संबंधित प्रश्न
What is the function of a flower?
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
Describe the process of fertilisation in a flower with the help of labelled diagrams.
In the figure given alongside, the parts marked A, B and C are sequentially :
(a) cotyledon, plumule and radicle
(b) plumule, radicle and cotyledon
(c) plumule, cotyledon and radicle
(d) radicle, cotyledon and plumule
The correct sequence of reproductive stages occurring in flowering plants is ______
Fill in the blank by selecting suitable word:
A flower bearing only male or female parts is known as __________ flower.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Write the names of male and female reproductive parts of a flower.
Identify the odd. Stigma, Style, Pollen, Ovary.
Answer the following question.
How does suitable pollination lead to fertilization?
Differentiate between self-pollination and cross-pollination.
Find the odd one out:
In which part of the flower germination of pollen grains takes place?
Where does the endothecium layer of anther lobes is present?
Gloriosa superba exhibits ______.
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
State the number of sets of chromosomes present in a zygote.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
