Control and coordination Worksheet-22
Subjective questions:
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Name the two hormones secreted by pancreas. Write one function of each hormone named.
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Name the hormone responsible for regulation of :
(i) metabolism of carbohydrates, fats and proteins.
(ii) balance of calcium and phosphate.
(iii) blood pressure.
(iv) water and electrolyte balance
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Explain 'reflex action' with a suitable example.
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Differentiate between tropic and nastic movements in plants, give one example of each.
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State the main function of 'pituitary gland'. Write the effect of
(i) excessive and
(ii) sluggish activity of this gland on the growth of a child.
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Taking the example of auxins and cytokinins together, explain,
(i) a synergistic action in plants, (ii) an antagonistic action in plants.
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Where does cerebrospinal fluid occur in our body? Mention any two of its functions.
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Name the ovarian hormones and give the function of any one of them.
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What is phytohormone? Name any two phytohormones.
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Mention the receptors for light and sound in animals.
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How does control and coordination take place in plants?
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Mention names of various phytohormones.
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Differentiate between tropic and nastic movements.
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What is autonomic nervous system?
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Define reflex action with suitable example.
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Name the hormones secreted by thyroid, parathyroid and pancreas.
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List the functions of testosterone and estrogen.
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Write names of three hormones secreted from pituitary gland.
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Give two examples of tropic movements.
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Name the two types of neurons? How is the functioning of one different from the other?
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Name the four regions of the fore-brain and mention any one function per region.
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Which is the control centre of a reflex action? What is the route taken by the reflex action called?
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Give functions of
(a) Calcitonin (b) Prolactin.
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How do you support the statement that 'pancreas' are the overall controller of the blood glucose level?
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What is the nature of action of phytochromes?
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Name the hormone associated with :
(a) maintenance of pregnancy
(b) regulation of male sex characters.
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What are 'releasing hormones'? Where are they released from?
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Classify the following movements as tropic or nastic:
(a) opening of flower
(b) roots moving downwards.
(c) shoots moving towards light
(d) twirling of a tendril.
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What is spinal cord and how is it protected?
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Where are pons present in the brain? Which activity do they control?