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Question
Sketch and label the essential and accessory whorls of flower.
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Solution
RELATED QUESTIONS
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:
I. Tegmen
II. Testa
III. Cotyledon
IV. Radicle
V. Plumule
The correctly identified parts among these are
(A) I, II and III
(B) II, III and IV
(C) III, IV and V
(D) I, III, IV and V
Name the parts labelled as A, B, C and D in the diagram given below:-
State significance of pollination.
Name the parts labelled as A, B, C and D in the diagram given below:
How is the process of pollination different from fertilization?
Sketch the reproductive parts of a flower.
What are the reproductive organs in a flower?
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
Fill in the following blank with suitable word :
The name of the structure in the flower in which the male gamete is formed is...........
What is made in ovary of a flower?
Explain the terms 'self pollination'
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which contains stored food.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Mention the function of Anther.
Describe an activity to demonstrate phototropism.
Explain sexual reproduction in plants.
Mention pollination types.
Bisexual : Hibiscus : : Unisexual : ___________
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Observe the figure below. Write functions of the labelled parts.
How many middle layers are generally present in the wall of the anther lobes?
Flowers showing ornithophily show few characteristic like ______.
Pollen grains are produced by ______
Length of pollen tube depends on the distance between ______
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
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?
Where is the zygote located in the flower after fertilization?
The ovaries of different flowers may contain ______.
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Double fertilization means ______.
In a plant flower the female whorl is ______.
Triple fusion involves ______.
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
Type of sexual reproduction is ______.
State the post-fertilisation changes that lead to fruit formation in plants.
