Advertisements
Advertisements
प्रश्न
What is phototropism?
Advertisements
उत्तर
The growth movement in plants in response to light stimulus is known as phototropism.
संबंधित प्रश्न
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
What is pollination?
"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
What are the reproductive organs in a flower?
Explain the terms 'cross-pollination'?
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?
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Answer the following question.
How does suitable pollination lead to fertilization?
The seed that contains the future plant is called the ______
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
