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प्रश्न
Accessory whorls : Calyx and corolla : : essential whorls : ______________
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उत्तर
Accessory whorls : Calyx and corolla : : essential whorls : Androecium and gynoecium
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संबंधित प्रश्न
State significance of pollination.
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
Mention the changes a flower undergoes after fertilisation.
The reproductive part of a plant is the ______.
Name the male part of the flower.
Where are the pollen grains produced?
Where is the male gamete formed in flowering plants?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
What is made in ovary of a flower?
Explain the term 'fertilisation'.
Name the part of a seed which contains stored food.
How does pollination occur?
Describe the process of fertilisation in a flower with the help of labelled diagrams.
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
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)
In what ways is fertilisation in a plant different from fertilisation in a human?
Put a tick mark (✓) against the correct alternative in the following statement
Reproductive whorls of a flower are:
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
What part is played by stamens and carpels in reproduction?
Identify A, B, C and D in the given diagram and write their names.
Identify the odd. Stigma, Style, Pollen, Ovary.
Draw a diagram of the longitudinal section of a flower and label the following parts.
Give scientific reason.
Flower is a structural unit of sexual reproduction in plants.
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
| 4. | Hooks | Spore |
| 5. | Sucker | Bignonia |
The essential parts of a flower are ______.
Identify the parts A, B, C, and D?
Which of the following is the outermost protective layer of anther?
The seed that contains the future plant is called the ______
Variations occur as a result of ______
Length of pollen tube depends on the distance between ______
Which out of the following processes does not lead to the formation of clones.
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Double fertilization is exhibited by ______
Double fertilization means ______.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
Explain the post fertilization changes that occur in the ovary of a flower.
