Advertisements
Advertisements
प्रश्न
Describe an activity to demonstrate phototropism.
Advertisements
उत्तर
To demonstrate phototropism in plants a sunflower plant is taken and kept in sunlight. It will be observed that the flower head of sunflower will move from east to west along with the movement of Sun. This shows that the flower head of sunflower is positively phototropic and moves in response to sunlight stimulus.
संबंधित प्रश्न
Name the parts A, B and C shown in the diagram and write their functions.
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
Mature ovary forms the ______.
What is the name of female part of a flower?
Explain the term 'fertilisation'.
Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flower possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (i), (iii) and (iv)
Draw a labelled diagram of a bisexual flower.
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
Identify A, B, C and D in the given diagram and write their names.
In a plant flower the female whorl is ______.
