PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
1. Differentiate phototropism from photonasty.
 
a. The unidirectional movement or growth of a plant towards the direction of light is known as .
 
b.  is slow and irreversible.
 
c. The non-directional movement of the part of a plant in response to light irrespective of the direction of stimulus is known as .
 
d.  is immediate, temporary and reversible.
 
2. Photosynthesis converts energy X into energy Y.
a. What are X and Y?

b. Green plants are autotrophic in their mode of nutrition. Why?
 
i. X is .
 
ii. Y is .
 
iii. As the green plants prepare their food through photosynthesis, they are said to be in an autotrophic mode of nutrition.