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There are two similar glands P which are located on the top of two similar organs Q in the human body. The glands P are often called glands of emergency and they secrete a hormone R into the blood

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Question

There are two similar glands P which are located on the top of two similar organs Q in the human body. The glands P are often called glands of emergency and they secrete a hormone R into the blood stream. The hormone R is secreted in large amounts when a person is frightened. It brings about temporary changes in the body which allow a lot of substance S from the liver to go into blood so as to provide a lot of energy in a very short time. This helps the person concerned to fight back or run away from the frightening situation. What are P, Q, R and S?

Case Study
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Solution

  • P is the adrenal glands.
  • Q is kidneys.
  • R is an adrenaline hormone.
  • S is glucose.
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Chapter 2: Control and Coordination - Exercise 2 [Page 150]

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Lakhmir Singh Biology Part 3 [English] Class 10
Chapter 2 Control and Coordination
Exercise 2 | Q 111. | Page 150
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