Q. 24.0( 115 Votes )
How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?
The movement of leaves of sensitive plant are nastic movements that are independent of any stimulus, be it light.
Movement of a shoot towards light is due to phototropism which is a plant’s growth response to light source. The movement of shoot towards light is positive and the shoots are said to be positively phototropic. If the plant part grows away from light, it is known as negatively phototropic.
Rate this question :
Following are the two examples of plant movement.
(i) Which stimulus is common for movement in both the cases?
(ii) Does the movement take place towards the point where the stimulus is received? Mention separately for both plants.
(iii) Give one reason for the movement is each case.All In One Science
A plant in the laboratory is given an increased dose of a hormone, which promotes the development of seedless fruits. Identify the hormone and write its other two functions.All In One Science
How is geotropism necessary for the plant?All In One Science
How does phototropism occur in a plant stem (or shoot)? Explain with the help of labelled diagrams.Lakhmir Singh & Manjit Kaur- Biology