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What is meant by tropic movements?...

What is meant by tropic movements?

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The directional growth movements of plants due to external stimuli are called tropic movement. It can be either towards the stimulus, or away from it. For example, in case of phototropic movement, shoots respond by bending towards light while roots respond by bending away from it.
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ZEN PUBLICATION-CONTROL AND COORDINATION-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE - I QUESTIONS)
  1. Label the parts of a neuron in the figure.

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  2. Match the terms of Column A with those of Column B.

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  3. What is meant by tropic movements?

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  4. What will happen if intake of iodine in our diet is low?

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  5. What happens at the synapse between two neurons?

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  6. Answer the following: a] Which hormone is responsible for the change...

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  7. Answer the following: a] Name the endocrine gland associated with br...

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  8. Trace the sequence of events that will occur when a bright light is fo...

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  9. Draw a neat labelled diagram showing the Reflex Arc.

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  10. Differentiate between the following: i] Tropic movement and nastic m...

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  11. What is the name given to the junction between neurons? Describe how a...

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  12. How does our body respond when adrenaline is secreted into the blood?

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  13. Name the plant hormone : i] Which inhibits growth and causes wilting...

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  14. Which endocrine gland is called master gland? Why?

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  15. A leaf shaped gland is present above the intestine. The secretion of t...

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  16. Why do people living in the mountainous regions get goitre?

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  17. a) Name the hormones that are released in human male and female when t...

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  18. (a) Which plant hormone is present in greater concentration in the are...

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  19. Name, the two main organs of our central nervous system. Which one of ...

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  20. Name the hormone secreted by human testes. State its functions.

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