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प्रश्न
Answer the following question.
List two agents of pollination?
उत्तर
Some of the most common agents of pollination that helps in carrying the pollen from the anther to the stigma of a flower are insects and wind.
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संबंधित प्रश्न
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
What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.
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
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
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.
Find the odd one out:
Write the functions of sepals
Where is the zygote located in the flower after fertilization?
Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.
Sketch and label the essential and accessory whorls of flower.
