PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
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Important!
Note: In some questions both the statements are correct so think and choose the best option.
A. Rahul loves grapes so he started cultivating a vineyard. While he was walking through his vine yard he found that when the tendrils of the vines came in contact with any support that helped in their growth they started to grow in a faster rate than the other parts thus moving towards the direction of the stimulus. Choose a statement that gives the correct reason.
Statement 1: Movement of a plant part due to the touch is known as thigmotropism.
Statement 2: Movement of a plant part due to the touch is known as thigmonasty.
B. Statement 1: The process of tropism can be considered as positive or negative based on the direction of growth in accordance with the stimulus.
Statement 2: The shoot system of a plant is negatively phototrophic.
C. Statement 1: The leaves are covered by a waxy layer known as the lenticels.
Statement 2: The tiny openings that protrude from the barks in woody stems and twigs, and other plant organs are known as lenticels.
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