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Question
Sketch and label the essential and accessory whorls of flower.
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Solution
RELATED QUESTIONS
Name the parts labelled as A, B, C and D in the diagram given below:-
Name the parts A, B and C shown in the following diagram and state one function of each.
Mention the changes a flower undergoes after fertilisation.
State the name of the functional unit concerned with sexual reproduction.
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
Fill in the following blank with suitable word :
The name of the structure in the flower in which the male gamete is formed is...........
Fill in the following blank with suitable word :
The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is...........
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
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
Pollen is produced in the:
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 blanks:
A stamen consists of ______ and ________.
Find the odd-one out, giving reason:
Anther, pollen grain, ovule male gamete
Mention the function of Flower.
Mention the function of Stigma.
Draw a labelled diagram of a bisexual flower.
Give one example each of unisexual and bisexual flowers. Differentiate between the two types of pollination that occur in flowers. What happens when a pollen lands on a suitable stigma? Write about the events that occur till the seed formation in the ovary.
“Cell division is a type of reproduction in unicellular organism.” Justify.
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:
(a) Female germ cell
(b) Male germ cell
(c) Ovary
Identify the odd. Stigma, Style, Pollen, Ovary.
Answer the following question.
How does suitable pollination lead to fertilization?
Calyx : Sepals : : Corolla : ________________
Pollen grains from anther are transferred to the stigma.
What does germination mean?
Give scientific reason.
Fertilization in plants is called double fertilization.
Explain the sexual reproduction process in plants with a diagram.
Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
Where does the endothecium layer of anther lobes is present?
Which of the following is the outermost protective layer of anther?
Flowers showing ornithophily show few characteristic like ______.
The flower of the Hibiscus plant is ______
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
Double fertilization means ______.
Triple fusion involves ______.
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
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