Advertisements
Advertisements
प्रश्न
In tropic movements, plant parts move
विकल्प
away from the stimulus
towards the stimulus
either towards or away from the stimulus
only towards water
उत्तर
either towards or away from the stimulus
APPEARS IN
संबंधित प्रश्न
Give the scientific terms used to represent the Growing of roots towards the earth.
What does a stem (or shoot) do in response to light? What is this phenomenon known as?
What is the difference between photonasty and thigmonasty?
One of the following plant hormones is responsible for the phenomenon of phototropism in plants. This is :
(a) gibberellin
(b) eltroxin
(c) cytokinin
(d) auxin
Which of the following acts as a stimulus in the process of hydrotropism?
(a) hydrocarbon
(b) hydrogen oxide
(c) hydrogen chloride
(d) hydrogen peroxide
State whether true or false. If false, correct the statement.
Shoot is positively phototropic and negatively geotropic.
The Scientific term used to represent the bending of roots toward water is called geotropism.
Give an example of chemotropism.
While conducting experiments to study the effects of various stimuli on the plants, it was observed that the roots of plant X grow and bend towards two stimuli A and B but bend away from a third stimulus C. The stem of the plant X however bends ” away from stimulus A and B but bends towards the stimulus C. The stimulus B is known to act on the roots due to factors related to Earth. Keeping these points in mind, answer the following questions:
- What could be stimulus A?
- Name the stimulus seen in B.
- What could be stimulus-C?
Define the following term:
Tropism
