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10th Class Chapter No 34 - Endocrine Glands - The Producers of Chemical Messengers in Science for ICSE

Hormones are chemical messengers that are secreted by ductless glands or endocrine glands sent to act on a specific organ in the body to control or regulate different processes. They are transported by the circulatory system to their ‘target’ organ to trigger the required activity.

Hormones in complex organisms (including humans) control a variety of functions like metabolism, growth, sexual development, respiration and different aspects of behaviour.

Hyposecretion: This refers to the condition where the hormone is secreted in lower than normal quantities. Different hormones cause different deficiencies due to hyposecretion.

Hypersecretion: This refers to the condition where the hormone is secreted in excess. Different hormones cause different conditions when secreted in excess.

Posted in 10th on July 16 2020 at 11:29 AM

ICSE 10th CLASS Science OTHER CHAPTERS

  • 10th-class science Chapter 23

    Properties of Sulphuric Acid: Sulphuric Acid has molecular formula H2SO4and molecular mass...
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    Population: Population is defined as a group of organisms of the same species living in one...
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    Gene: A gene is a region of DNA which is made up of nucleotides and is the molecular unit...
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    Transpiration: Transpiration is the loss of water due to evaporation that occurs through...
  • 10th-class Science Chapter 31

    Photosynthesis: The process by which green plants are able to synthesize food from carbon...
  • 10th-class Science Chapter 29

    There are two types of reproduction systems in animals: Asexual reproduction: A type of...
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    The cell is the fundamental and structural unit of life and cells are often called the...
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    The excretory system is essential to one’s health. Its responsibility is to remove waste from...

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