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प्रश्न
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
उत्तर
Diagram of pistil showing formation of pollen tube
संबंधित प्रश्न
Name the part made up of the stigma, style and ovary.
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.
What is pollination? How does pollination occur?
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
The students of a class were asked by the teacher to study the different parts of an embryo of an angiosperm. Given below are the essential steps for the experiment :
A. Soak the seeds in plain water and keep them overnight.
B. Cut open the soaked seed and observe its different parts.
C. Take some healthy seeds in a petri-dish.
D. Drain the excess water, cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(a) C, A, D, B
(b) C, D, A, B
(c) A, C, D, B
(d) A, C, B, D
Pollen grains are formed by _________ division in locules of anthers.
Double fertilization is exhibited by ______
Given below is a diagram of a germinating seed. Label the parts that:
- gives rise to future shoot.
- gives rise to future root system.
- stores food.
