Residual volume allows gas exchange to go on continuously
Yes, Parafilm allows for limited gas exchange due to its semi-permeable nature.
The volume of air that cannot undergo gas exchange is known as dead space. It consists of the air in the conducting airways (trachea, bronchi, bronchioles) where gas exchange does not occur because it does not reach the alveoli where oxygen and carbon dioxide exchange takes place.
gaseous exchange takes place when the volume of the chest cavity is increased or decreased.
Dead space volume
Gaseous exchange takes place when the volume of the chest cavity is increased or decreased.
Diffusion
Having the gas exchange organ inside the body allows for more efficient exchange of gases with the environment by minimizing exposure to external factors such as temperature and humidity. This internal placement also provides protection against physical damage and reduces the risk of desiccation. Additionally, it allows for more precise regulation of gas exchange processes.
Alveolar ventilation rate refers to the volume of air per minute that reaches the alveoli in the lungs for gas exchange. It is calculated by multiplying the tidal volume by the respiratory rate and subtracting the dead space volume. This measurement is important for assessing the efficiency of gas exchange in the lungs.
gas has no specific volume because the molecules can be compressed or expanded, which would change the volume. like there is a smaller volume of gas in a can of soda then in the atmesphere around you.
The volume of air available for gas exchange per minute is called the minute ventilation. It is calculated by multiplying the tidal volume (amount of air inhaled or exhaled during normal breathing) by the respiratory rate (number of breaths per minute).
The opening in a leaf that allows for gas exchange is called a stoma (plural: stomata). Stomata are typically located on the underside of the leaf and are bordered by guard cells that regulate their opening and closing to control gas exchange.
Dead space volume is when some of the inspired air fills the conducting respiratory passageways and never contributes to gas exchange in the alveoli.