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Question
Find an odd one out.
Options
Stigma
Style
Pollens
Ovary
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Solution
Pollens
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RELATED QUESTIONS
A student has to perform the experiment "To identify the different parts of an embryo of a dicot seed." Select from the following an appropriate group of seeds:
(a) Pea, gram, wheat
(b) Red kidney bean, maize, gram
(c) Maize, wheat, red kidney bean
(d) Red kidney bean, pea, gram
Mature ovary forms the ______.
Where are the pollen grains produced?
Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
Fill in the following blank with suitable word :
The name of the structure in the flower in which the male gamete is formed is...........
Explain the terms 'self pollination'
Explain the terms 'cross-pollination'?
The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
One of the following occurs in the reproductive system of flowering plants as well as that of humans. This is :
(a) vas deferens
(b) anther
(c) ovary
(d) style
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 different from 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.
Fill in the blank:
Seeds are formed from________.
State whether the following statement is true (T) or false (F):
Stamens make egg cells.
What part is played by stamens and carpels in reproduction?
“Cell division is a type of reproduction in unicellular organism.” Justify.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Find the odd one out:
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Give scientific reason.
Flower is a structural unit of sexual reproduction in plants.
The male reproductive part of a flower is ______.
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
| 4. | Hooks | Spore |
| 5. | Sucker | Bignonia |
Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
In which part of the flower germination of pollen grains takes place?
The ovule of an angiosperm is technically equivalent to ______
Antipodal cells are present towards the ______ in an anatropous ovule.
Identify the female gametophyte in angiosperms.
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
The flower of the Hibiscus plant is ______
The seed that contains the future plant is called the ______
Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages?
Double fertilization is essential for formation of ______.
What is puberty?
Type of sexual reproduction is ______.
The pollen tube usually enters the embryo sac ______.
