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1. Which of the following is not an involuntary action?
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Vomiting
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Salivation
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Heart beat
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Chewing
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Explanation
Chewing
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2. When a person is suffering from severe cold, he or she cannot
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differentiate the taste of an apple from that of an ice cream
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differentiate the smell of a perfume from that of an agarbatti
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differentiate red light from green light
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differentiate a hot object from a cold object
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Explanation
differentiate the smell of a perfume from that of an agarbatti
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3. What is the correct direction of flow of electrical impulses?
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a
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b
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c
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d
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Explanation
c
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4. Which statement is not true about thyroxin?
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Iron is essential for the synthesis of thyroxin
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It regulates carbohydrates, protein and fat metabolism in the body
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Thyroid gland requires iodine to synthesise thyroxin
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Thyroxin is also called thyroid hormone
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Explanation
Iron is essential for the synthesis of thyroxin
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5. Dwarfism results due to
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Excess secretion of thyroxin
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Less secretion of growth hormone
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Less secretion of adrenaline
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Excess secretion of growth hormone
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Explanation
Less secretion of growth hormone
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6. Dramatic changes of body features associated with puberty are mainly because of secretion of
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oestrogen from testes and testosterone from ovary
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estrogen from adrenal gland and testosterone from pituitary gland
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testosterone from testes and estrogen from ovary
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testosterone from thyroid gland and estrogen from pituitary gland
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Explanation
testosterone from testes and estrogen from ovary
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7. A doctor advised a person to take an injection of insulin because
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his blood pressure was low
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his heart was beating slowly
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he was suffering from goitre
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his sugar level in blood was high
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Explanation
his sugar level in blood was high
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8. The hormone which increases the fertility in males is called
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oestrogen
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testosterone
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insulin
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growth hormone
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Explanation
testosterone
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9. Which of the following endocrine glands is unpaired?
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Adrenal
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Testes
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Pituitary
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Ovary
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Explanation
Pituitary
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10. Junction between two neurons is called
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cell junction
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neuro muscular junction
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neural joint
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synapse
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Explanation
synapse