Mention two points of differences between breathing and respiration.
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Answer:
BREATHING
The process of breathing starts when you inhale air through your nose or mouth and it travels down the back of your throat and into the windpipe which is divided into many air passages called the bronchial tubes.
The physiological parts involved in breathing are:
•Nose and nasal cavity
•Sinuses
•Mouth
•Throat (pharynx) and voice box (larynx)
•Windpipe (trachea)
•Diaphragm
•Lungs
•Bronchial tubes and bronchioles
•Air sacs (alveoli)
•Capillaries
The bronchial tube further subdivides into smaller air passages called bronchioles. At the end of each bronchiole, there are balloon-like air sacs known as alveoli which are surrounded by blood vessels called the capillaries. It is in the alveoli that the inhaled oxygen passes into the blood.
The oxygen-rich blood then travels to the heart and then it is pumped out to all the cells, tissues and organs of the body. The cells use the oxygen and then carbon dioxide is produced which is again absorbed by the blood and travels to your lungs where it is removed from the body as you exhale.
RESPIRATION
Respiration could be defined as a biochemical process in which the cell of an organism obtains energy from oxygen and glucose and in turn releases ATP, carbon dioxide and water. The energy is used for various daily activities such as walking, running, sitting and almost all bodily processes. It plays a vital role in maintaining the functions of our organ system.
Respiration can be classified into two types:
Aerobic respiration
Anaerobic respiration
Aerobic Respiration: This process takes place in the presence of oxygen to produce energy. It can be observed in all types of eukaryotic cells.
Anaerobic Respiration: This process takes place in the absence of oxygen and can generally be observed in human muscles cells, prokaryotes and methanogens.
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