WebAug 5, 2024 · BREATHING AND EXCHANGE OF GASES Respiration is the oxidation of nutrients in the living cells to release energy for biological … WebAnswer: For efficient exchange of gases, the respiratory surface must have certain characteristics such as: 1. It must be thin, moist, and permeable to respiratory gases. 2. It must have a larger surface area. 3.It must be highly vascular. Only the functional alveolar region has these characteristics.
BREATHING AND EXCHANGE OF GASES - Clear IIT Medical
WebBREATHING AND EXCHANGE OF GASES(notes) SUBJECT: BIOLOGY. CLASS :XI. Breathing: process of exchange of O2 from the atmosphere with CO2 produced by the cells is called breathing, commonly known as respiration. RESPIRATORY ORGANS. WebAug 5, 2024 · Alveoli are the primary sites of gas exchange. O2 & CO2 are exchanged by simple diffusion. It depends upon the following factors: Pressure/ concentration gradient: The Partial pressures (individual pressure of a gas in a gas mixture) of O2 and CO2 (pO2 and pCO2) are given below. Respiratory gas. pO2 (in mm Hg) pCO2 (in mm Hg) Atmospheric air. foam cell shock absorbers v gas
NCERT Solution for Class 11 Biology Chapter 17 - Breathing and Exchange …
WebMechanism of breathing Exchange and transport of gases Regulation and disorders of respiration About this unit How do we breathe? Learn about the parts of the respiratory system and the mechanism that lets us inhale, exhale, transport and exchange gases. … WebJan 4, 2024 · Breathing and Exchange of Gases – Notes. Respiratory Organs. The process of breathing accompanied by the breakdown of foods to produce energy is called respiration. Among all animals, mammals have a well-developed respiratory system. In humans beings, and generally in all mammals, the organs of respiration include the nose, … WebAug 5, 2024 · Alveoli are the primary sites of gas exchange. O2 & CO2 are exchanged by simple diffusion. It depends upon the following factors: Pressure/ concentration gradient: … foam cells in a fatty streak are quizlet