EXPLAIN Respiration as much as you can ..
Answers
▪All living organisms require energy to carry out various life processes . like nutrition, transport, excretion, reproduction, etc.)
▪This energy is stored in the food that we eat .
▪In order to break down food to release energy oxidation, of food ( reaction with oxygen ) takes place .
▪This reaction takes place in the cells of the body of the organisms .
▪The oxygen needed for the oxidation comes from the air that we inhale ( breathe in ).
▪This oxygen is then transported to all the body parts and finally, to every cell .
▪Thus, the process in which food is broken down to release energy is called respiration .
▪During respiration, carbon dioxide and water are released as waste- products .
▪The two basic processes of respiration are : external respiration and internal respiration .
▪The external respiration is also known as breathing .
▪It involves breathing in a rich in oxygen ( inhalation ) and breaking out air rich in carbon dioxide ( exhalation ) .
▪Internal respiration is also known as cellular respiration .
▪It involves The breakdown of food using oxide to release energy .
HUMAN RESPIRATORY SYSTEM:
The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe.
PARTS OF RESPIRATORY SYSTEM:
1.The trachea, also called the windpipe, filters the air that is inhaled. It branches into the bronchi, which are two tubes that carry air into each lung. (Each one is called a bronchus.)
2.The bronchial tubes are lined with tiny hairs called cilia. Cilia move back and forth, carrying mucus up and out. Mucus, a sticky fluid, collects dust, germs and other matter that has invaded the lungs.
3.The alveolar walls are extremely thin (about 0.2 micrometers). These walls are composed of a single layer of tissues called epithelial cells and tiny blood vessels called pulmonary capillaries.
4.The diaphragm, a dome-shaped muscle at the bottom of the lungs, controls breathing and separates the chest cavity from the abdominal cavity.