A loss of lung tissue elasticity makes breathing easier by reducing the effort required for lung recoil.

### Why this is right The statement reverses the effect described in the material. Loss of elasticity makes it harder for the lungs to expand and contract, rather than making breathing easier. ### The concept Elastic lung tissue stretches as the lungs expand and then returns toward its previous shape. Smoke-related damage can reduce this elasticity and contribute to air trapping. The material connects these changes with difficulty breathing and reduced lung function. It also distinguishes structural damage from airway inflammation, although both may impair breathing. ### The other options - **The statement is false**: The material says loss of elasticity makes lung expansion and contraction harder. It does not describe this change as improving breathing mechanics. ### Watch out Do not confuse “loss of elasticity” with increased flexibility. A loss means less ability to stretch and recoil normally. ### Terms - **Elasticity**: The ability of tissue to stretch and return toward its original shape. - **Air trapping**: Retention of air in the lungs, which the material associates with loss of elasticity. ### Remember In the supplied material, reduced lung elasticity makes breathing more difficult, not easier.