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Physiology


7. 

The tropic movement that helps the climbing vines to find a suitable support is

Answer : C. thigmotropism

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8. 

The chemical reaction occurs during photosynthesis is

Answer : A. CO2 is reduced and water is oxidized

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9. 

A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of

Answer : C. Phototropism

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10. 

Choose the correct answer :
The plant root system is
1. negatively phototropic but positively geotropic
2. positively phototropic but negatively geotropic

Answer : A. 1 alone correct

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11. 

Chlorophyll in a leaf is required for

Answer : A. photosynthesis

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12. 

Usually shoot system of a plant is
1. positively phototropic and negatively geotropic
2. negatively phototropic and positively geotropic

Answer : A. 1 alone correct

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