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प्रश्न
What is a tropic movement? Explain with an example.
उत्तर
The movements which are in a particular direction in relation to the stimulus are called tropic movements. Tropic movements happen because of growth of a plant in a particular direction. There are four types of tropic movements, viz. geotropic, phototrophic, hydrotropic and thermotropic.
Example: Roots usually show positive geotropic movement, i.e., they grow in the direction of the gravity. Stems usually show negative geotropic movement.
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संबंधित प्रश्न
The movement of a shoot towards light is:
The bending of root of a plant in response to water is called ______.
The root of the plant is ______.
- positively phototropic but negatively geotropic
- positively geotropic but negatively phototropic
- negatively phototropic but positively hydrotropic
- negatively hydrotropic but positively phototropic
What is chlorophyll?
A student accidentally places her hand on the flame of the candle and quickly pulls her hand away. The flame represents:
The plant part which exhibits negative geotropism is ______.
When the leaves of a sensitive plant are touched with a finger, they fold up, and when the light fades at dusk the petals of a sunflower. These two plants show ______ and ______ movements.
Write the scientific terms used to represent the following:
Growing of roots towards the gravity.
The height of a plant is regulated by ______.
Which parts of a plant exhibit Positive hydrotropism?
