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प्रश्न
Find an odd one out.
विकल्प
Hibiscus
Papaya
Sun-flower
Rose
Mango
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उत्तर
Papaya
APPEARS IN
संबंधित प्रश्न
What is pollination?
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
Name and differentiate between the two modes of pollination in flowering plants.
Name the parts labelled as A, B, C and D in the diagram given below:
How is the process of pollination different from fertilization?
Name the swollen lower part of the carpel.
Where are a plant's sex organs located?
What is the name of female part of a flower?
Where is the male gamete formed in flowering plants?
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
Name the part of a seed which contains stored food.
Name the part of a seed which grows into shoot.
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
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Multiple choice question. Tick (✓) the correct choice:
Unisexual flowers are found in
- mulberry
- mustard
- pea
- sunflower
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
Find the odd-one out, giving reason:
Anther, pollen grain, ovule male gamete
What are the male and female gametes in a flowering plant?
What part is played by stamens and carpels in reproduction?
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Describe an activity to demonstrate phototropism.
Explain sexual reproduction in plants.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Answer the following question.
How does suitable pollination lead to fertilization?
What is meant by pollination?
Answer the following question.
List two agents of pollination?
Pollen grains are formed by _________ division in locules of anthers.
The male reproductive part of a flower is ______.
In which part of the flower germination of pollen grains takes place?
The anther wall consists of four wall layers where ______
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
The 3-celled egg apparatus at the micropylar end comprises of ______
Identify the female gametophyte in angiosperms.
Length of pollen tube depends on the distance between ______
The ovaries of different flowers may contain ______.
Double fertilization is exhibited by ______
Sketch and label the essential and accessory whorls of flower.
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
