Advertisements
Advertisements
प्रश्न
Why do moss plants produce very large number of male gametes? Provide one reason. What are these gametes called?
Advertisements
उत्तर १
Moss plants produce a large number of male gametes to increase the chances of fertilisation, as the eggs are located in the archegonium and the male gametes have to swim in water to reach the eggs for fertilisation to occur. The male gametes are called antherozoids.
उत्तर २
Moss plants produce a very large number of male gametes because the male gametes need to move through a moist environment to reach the egg for fertilization. Many male gametes fail to reach the egg, so producing them in large numbers compensates for this loss. These male gametes are called antherozoids.
APPEARS IN
संबंधित प्रश्न
As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure(s) that shall ensure cross-pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each one of them.
Add a note on pollination mechanism in Salvia.
Exine and intine are the parts of
Fill in the blanks with suitable words.
_______ is a water-pollinated flower.
Name of the part of the ovary which gives rise to:
Fruit ______
Name of the parts of the ovary which give rise to:
Fruit wall ______
What is a flower? Draw a typical flower and label its different parts.
For which of the following attractants and rewards are required?
Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in ______.
Triple fusion in Capsella bursa pastoris is fusion of male gamete with ______.
The flower which possesses both androecium and gynoecium is called perfect or ______.
Which of the following plant contain unisexual flower?
Which type of flower has ovary superior?
Which one of these statements is incorrect?
The following statements seem to describe the water-pollinated submerged plants.
Pollination refers to the ______.
Which one of the following may require pollinators, but is genetically similar to autogamy?
Advantage of cleistogamy is:
Correct definition of pollination is ______
What is ornithophily?
Mention any one example of the anemophilous flower.
