NEET BIOLOGY

Detailed explanation-1: -There are two types of Respiration: Internal respiration and External respiration. Internal respiration is the exchange of oxygen and carbon dioxide between blood cells and the cells of the body. External respiration is also the process of breathing that includes the inhalation and exhalation of gases.

Detailed explanation-2: -The respiratory tract is divided into two main parts: the upper respiratory tract, consisting of the nose, nasal cavity and the pharynx; and the lower respiratory tract, consisting of the larynx, trachea, bronchi and the lungs.

Detailed explanation-3: -They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.

Detailed explanation-4: -External respiration occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses into the alveolar air. Internal respiration occurs in the metabolizing tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells.

Detailed explanation-5: -Breathing or external respiration: This is the process of taking in oxygen-rich air and giving out carbon dioxide-rich air. Cellular respiration or internal respiration: This is the process of breakdown of food in the presence of oxygen into carbon dioxide and water to release energy.