Advertisements
Advertisements
Question
Sketch and label the essential and accessory whorls of flower.
Advertisements
Solution
RELATED QUESTIONS
Name the parts labelled as A, B, C and D in the diagram given below:-
How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
Name and differentiate between the two modes of pollination in flowering plants.
The anther contains ______.
The fusion of male and female gametes is termed as ______.
Mature ovary forms the ______.
What are the reproductive organs in a flower?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
How do the insects help in cross-pollination?
What is meant by ‘unisexual flowers’?
How does pollination occur?
Describe the process of fertilisation in a flower with the help of labelled diagrams.
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)
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)
In what ways is fertilisation in a plant similar to fertilisation in a human?
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
Fill in the blank:
Seeds are formed from________.
What part is played by stamens and carpels in reproduction?
Explain the process of fertilisation in flowers.
In the figure, the parts marked A, B and C are sequentially:
(A) Plumule, Radicle and Cotyledon
(B) Radicle, Plumule and Cotyledon
(C) Plumule, Cotyledon and Radicle
(D) Radicle, Cotyledon and Plumule
Draw a diagram of the longitudinal section of a flower and label the following parts.
Define.
Inflorescence
The male reproductive part of a flower is ______.
Identify the parts A, B, C, and D?
In which part of the flower germination of pollen grains takes place?
Where does the endothecium layer of anther lobes is present?
Which type of development is observed in male gametophytes of plants?
In a flowering plant, archesporium gives rise to ______.
Pineapple fruit develops from ______.
Variations occur as a result of ______
Which among the following statements are true for sexual reproduction in flowering plants?
- It requires two types of gametes
- Fertilisation is a compulsory event
- It always results in formation of zygote
- Offspring formed are clones
Where is the zygote located in the flower after fertilization?
State the number of sets of chromosomes present in a zygote.
Double fertilization is essential for formation of ______.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Explain the post fertilization changes that occur in the ovary of a flower.
