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प्रश्न
Find an odd one out.
पर्याय
Stigma
Style
Pollens
Ovary
उत्तर
Pollens
APPEARS IN
संबंधित प्रश्न
Name the parts A, B and C shown in the diagram and write their functions.
Answer the following question.
What is pollination? Explain the different types of pollination.
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
How is the process of pollination different from fertilization?
Sketch the reproductive parts of a flower.
How does the process of fertilisation take place in flowers?
State the name of the functional unit concerned with sexual reproduction.
Name the swollen lower part of the carpel.
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.
What is made in anther of a flower?
How do the insects help in cross-pollination?
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which contains stored food.
Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flower possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (i), (iii) and (iv)
When an insect sits on the flower of a plant then some particles A present in the top of little stalks in the flower attach to its body hair. When this insect now sits on the flower of another similar plant, then particles A attached to the hair of insect are put on the top of a flask-shaped organ at the centre of flower. The particle A grows a long tube b from the top of flask-shaped organ through which C moves down and reaches the bottom part of flask-shaped organ. Here C fuses with the nucleus of d contained in structure E. the fusion of C and D forms a new cell f which grows and develops into a seed of the plant.
(a) What are particles A? What is the process of transferring A from one flower to another flower of similar plant by the insect known as?
(b) What is the name of tube B?
(c) What is C which moves down through the tube B?
(d) Name D and E.
(e) What is F?
In what ways is fertilisation in a plant similar to fertilisation in a human?
Fill in the blank by selecting suitable word:
A flower bearing only male or female parts is known as __________ flower.
What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.
Mention the function of Anther.
What part is played by stamens and carpels in reproduction?
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Identify the odd. Stigma, Style, Pollen, Ovary.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Fill in the blanks and rewrite the completed statements:
Lymph flows in _______________ direction.
Find the odd one out:
Pollen grains are formed by _________ division in locules of anthers.
Bisexual : Hibiscus : : Unisexual : ___________
Define.
Inflorescence
Distinguish between self-pollination and cross-pollination.
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
Where is the zygote located in the flower after fertilization?
What is the function of calyx?
