CONTROL AND COORDINATION - 4
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Q.1. Which of the following is not a plant hormone ? *
1 point
Q.2. One of the following plant hormones is responsible for the phenomenon of phototropism in plants. This is : *
1 point
Q.3. The movement of a plant part in response to the force of attraction exerted by the earth is called : *
1 point
Q.4. The movement of sunflower in accordance with the path of the sun is due to : *
1 point
Q.5. The plant part which exhibits negative geotropism is : *
1 point
Q.6. A big tree falls in a forest but its roots are still in contact with the soil. The branches of this fallen tree grow straight up (vertically). This happens in response to *
1 point
Q.7. Which of the following is not caused by a growth movement ? *
1 point
Q.8. The root of a plant is :  (i) positively phototropic but negatively geotropic (ii) positively geotropic but negatively phototropic (iii) negatively phototropic but positively hydrotropic (iv) negatively hydrotropic but positively phototropic *
1 point
Q.9. The main function of the plant hormone called abscisic acid is to : *
1 point
Q.10. The growth of tendrils in pea plants is due to the : *
1 point
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