AP BIOLOGY

Detailed explanation-1: -Complete answer: Pneumatophores are the specialized erect roots (a modification of root) which facilitate the exchange of gases in plants growing in marshy areas. So, the pneumatophores are also called, breathing roots as these roots possess pores known as breathing pores or pneumatophores for gaseous exchange.

Detailed explanation-2: -Pneumatophores are modifications of roots in plants growing in swampy areas or waterlogged environments. Pneumatophores help the plant derive oxygen for respiration. In plants with pneumatophores, many roots come out of the ground, grow vertically upwards and rise above the water level.

Detailed explanation-3: -Pneumatophores are specialized root structures that grow out from the water surface and facilitate the aeration necessary for root respiration in hydrophytic trees such as many mangrove species (e.g., Avicennia germinans and Laguncularia raecemosa), bald cypresses, and cotton (tupelo) gum (Nyssa aquatica).

Detailed explanation-4: -Pneumatophores bear small pores called lenticels near their tips. These pores help in gaseous exchange. Was this answer helpful?

Detailed explanation-5: -Pneumatophores are roots that grow vertically upwards to get oxygen for respiration by plants growing in swampy areas. The pneumatophores are mainly found in mangroves, including Ceriops, and Heritiera. These roots are covered with small pores, through which oxygen can be absorbed and carbon dioxide can be released.