IB Biology Sub-topic B3.1 Definitions
The smallest component in the lungs where gas exchange occurs
A pair of muscles that exert forces in opposite directions to one another
A chronic and progressive disease characterized by a breakdown of alveolar walls leading to larger air sacs with thicker and less permeable walls
The study of incidence and causes of disease
The process of oxygen and carbon dioxide diffusing across the walls of the alveoli
The process by which leaves expel oxygen and obtain carbon dioxide
A plant that has adapted itself to a saline environment to conserve water
The volume of air inhaled or exhaled
The loss of water as an inevitable consequence of gas exchange
The flow of water caused by evaporation at the leaf putting tension on the column of water
The consistent removal and replacement of air in the lungs via inhalation and exhalation of air
The number of inhalations or exhalations per minute
A plant that has adapted itself to a desert environment to conserve water