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Question
Pollen tube reaches the embryo sac via style.
Options
True
False
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Solution
True
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RELATED QUESTIONS
How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.
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
Name the parts labelled as A, B, C and D in the diagram given below:
Give one example of a unisexual flower.
Mention the changes a flower undergoes after fertilisation.
The reproductive part of a plant is the ______.
State the name of the functional unit concerned with sexual reproduction.
What is the function of a flower?
What is the name of female part of a flower?
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
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...........
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which grows into root.
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?
Draw a labelled diagram of a bisexual flower.
Identify A, B, C and D in the given diagram and write their names.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
List any two differences between pollination and fertilization.
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Explain sexual reproduction in plants.
Differentiate between self-pollination and cross-pollination.
What is meant by pollination?
Pollen grains are formed by _________ division in locules of anthers.
What does germination mean?
Write the functions of sepals
Observe the figure below. Write functions of the labelled parts.
The ovule of an angiosperm is technically equivalent to ______
Gloriosa superba exhibits ______.
Sperm and egg nuclei fuse due to ______.
Pineapple fruit develops from ______.
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.
Sketch and label the essential and accessory whorls of flower.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
