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Question
Find an odd one out.
Options
Hibiscus
Papaya
Sun-flower
Rose
Mango
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Solution
Papaya
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RELATED QUESTIONS
Name the parts labelled as A, B, C and D in the diagram given below:-

What is pollination?

(i) Name the part marked 'A' in the diagram.
(ii) How dose 'A' reachese part 'B'?
(iii) State the importance of the part 'C'.
(iv) What happens to the part marked 'D' after fertilisation is over?
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
State significance of pollination.
The anther contains ______.
A flower may have either male or female reproductive parts. Such a flower is called ______.
Fill in the following blank with suitable word :
The.......... at the base of the carpel contains egg cells.
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
Which of the following statements are true for sexual reproduction in flowering plants?
(i) it requires two types of gametes
(ii) fertilisation is a compulsory event
(iii) it always results in the formation of zygote
(iv) offsprings formed are clones
(a) (i) and (iv)
(b) (i), (ii) and (iv)
(c) (i), (ii) and (iii)
(d) (ii), (iii) and (iv)
The flask-shaped organ A at the centre of a flower is surrounded by a number of little stalks B having swollen tops which lie just inside the ring of petals.
(a) Name A. What are the various parts of A?
(b) Which part of A contains gametes?
(c) Name B. What is the swollen top of B known as?
(d) What does the swollen top of b contain?
(e) Out of A and B, which one is (i) male part, and (ii) female part of the flower?
In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
“Cell division is a type of reproduction in unicellular organism.” Justify.
What is phototropism?
List any two differences between pollination and fertilization.
Draw a diagram of the longitudinal section of a flower and label the following parts.
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?
Give scientific reason.
Fertilization in plants is called double fertilization.
The essential parts of a flower are ______.
Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
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 anther wall consists of four wall layers where ______
Generally, in a pollen tube, which of the following moves to the tip of the tube?
The 3-celled egg apparatus at the micropylar end comprises of ______
Sperm and egg nuclei fuse due to ______.
In human beings, fertilization occurs in the ______
Variations occur as a result of ______
Double fertilization is essential for formation of ______.
Double fertilization means ______.
Triple fusion involves ______.
