Question

difference between breathing and respiration ​

Answer 1

Breathing is a biophysical process that involves the exchange of gases through inhalation and exhalation.

• Breathing is also called 'external respiration' as it is an external process of taking oxygen in and throwing carbon dioxide out via respiratory organs.
• The process of breathing in all vertebrates consists of highly branches network of tubes that connect the nose and the alveoli.
• breathing in repetitive cycles where the number of respiratory cycles in a minute is called breathing or respiratory rate.
• under normal conditions, the rate and depth of breathing are controlled by several homeostasis mechanism to maintain the partial pressure of Oxygen and carbon dioxide in the blood.
• the mechanism of breathing involves contraction and relaxation of several muscles muscles present in the thoracic cavity because the lungs are not capable of inflating on their own.
• in humans and most vertebrates, the inflation of lungs is brought by the contraction of the diaphragm and the intercostals muscles, causing the rib cage to rise upwards and outwards.
• during inhalation, the air is taken in through the nose that passes through the nasal passage, the pharynx, the larnyx to to reach the respiratory tree.

respiration is a biochemical process to release energy from organic compounds which are then used for performing different physical activities.

• respiration is also called internal respiration as it is an internal process of breathing down complex organic compounds into carbon dioxide and water while releasing energy.
• respiration, unlike breathing, occurs in all living organisms.
• it is an involuntary process that occurs automatically if all the reactants for the reactions are available.
• respiration takes place in the mitochondria of the cells throughout the body.
• respiration is a metabolic process where glucose is oxidised in the presence of oxygen to form carbon dioxide and water.
• respiration can occur either in the presence of oxygen or in its absence. respiration in the presence of oxygen is aerobic respiration, whereas the respiration in the absence of oxygen is anaerobic respiration.
• the reactions involved in cellular respiration are catabolic reactions which break down complex compounds into simple ones.