Control and coordination Worksheet-30
Subjective questions:
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Which lobe of cerebral hemisphere is the region for speech?
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Name the scientists who first introduced the term 'hormone'.
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What is the term used for a person who specializes in endocrine glands?
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Which endocrine glands are associated with kidneys?
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Which of the following has no ducts, exocrine gland or endocrine gland?
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Write the function of thyroxine hormone in our bodies.
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We suddenly withdraw our hand when a pin pricks. Name the type of response involved in this action.
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Which hormone helps in lowering the level of blood glucose (sugar) in human beings?
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A potted plant is made to lie horizontally on the ground. Which part of the plant will show
(i) positive geotropism, (ii) negative geotropism.
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Name the hormone that helps in regulating level of sugar in our blood. Name the gland that secretes it
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What is cranium? What is its function?
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Name the main parts of the nervous system of grasshopper (insect).
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Give the scientific names for the following receptors in animals:
(a) receptors for light (b) receptors for sound (c) receptors for smell (d) receptors for touch (e) receptors for heat.
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Name the fluid-filled cavities present in the diencephalon of forebrain and medulla oblongata of hindbrain.
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(a) Name the secretions released by neurosecretory cells of hypothalamus. Where is hypothalamus located?
(b) Why is hypothalamie-pituitary system important?
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(a) Name atleast one photochormone which stimulates growth in plants.
(b) Name the phytohormone which inhibits or retards growth in plants.
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(a) Which disease is caused by the hypersecretion of thyroid hormone?
(b) Which disease is caused by the hyposecretion of thyroid hormones in infants?
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(a) What is the cause of diabetes insipidus disease in man?
(b) What is the cause of diabetes mellitus disease in man?
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(a) Which plant hormone promotes growth and ripening of fruits?
(b) Which plant hormone promotes cell division in plants?
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(a) Which endocrine gland secretes melatonin hormone? Where is this gland located?
(b) Which endocrine gland secretes gonadotropic hormones? Where is this gland located?
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What is the difference between a reflex action and walking?
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What happens at the synapse between two neurons?
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How do we detect the smell of an agarbatti (incense stick)?
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What is the role of the brain in reflex action?
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What are plant hormones?
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How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?
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How do auxins promote the growth of a tendril around a support?
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How does chemical coordination take place in animals? Ans. In animals, endocrine
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Why is the use of iodised salt advisable?
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How does our body respond when adrenaline is secreted into the blood?