Advertisements
Advertisements
Question
Why do moss plants produce very large number of male gametes? Provide one reason. What are these gametes called?
Advertisements
Solution 1
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.
Solution 2
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
RELATED QUESTIONS
With the help of a suitable example, explain protandry.
Why angiosperm anthers are called dithecous?
What is meant by emasculation?
Add a note on pollination mechanism in Salvia.
Fill in the blanks with suitable words.
_______ is a water-pollinated flower.
When maturation time of reproductive parts in a flower is different.
In bisexual flowers, maturation of gynoecium before androecium is known as ______.
Answer the following question.
Write the difference in the characteristics of the progeny produced as a result of the two processes.
Differentiate Between Cross Pollination and Self Pollination:
What are the adaptations which are required in cross-pollinated
The question has four options. Choose the correct answer:
Pollination by insect is known as
Give an account of any two biotic agents for pollination along with their adaptations.
Wind pollination is common in ______.
Pollination by water occurs in ______.
A dioecious flowering plant prevents both ______.
Chief pollinators of agricultural crops are ______.
Which of these is a condition that makes flowers invariably autogamous?
The flower which possesses both androecium and gynoecium is called perfect or ______.
A botanist studying Viola (common pansy) noticed that one of the two flower types withered and developed no further due to some unfavorable condition, but the other flower type on the same plant survived and it resulted in an assured seed set. Which of the following will be correct?
Choose the correct statement from the following:
