AP BIOLOGY

Detailed explanation-1: -When the plant opens its stomata to let in carbon dioxide, water on the surface of the cells of the spongy mesophyll and palisade mesophyll evaporates and diffuses out of the leaf. This process is called transpiration .

Detailed explanation-2: -Transpiration occurs as water diffuses through the plant from the roots and evaporates from the leaves through the stomata openings (more on this later). The evaporation of water from the leaves causes a shortage of water in the plant, allowing more water to be taken up from the roots.

Detailed explanation-3: -Roots absorb water from the soil. This water travels up to the stem and then to the branches. Finally water is distributed to every leaf via petiole. Petiole is the part of leaf which connects it to the plant.

Detailed explanation-4: -When the stomata are open, plants lose water vapour through them as well. The water vapour evaporates from the cells lining the air spaces and then passes out of the leaf through the stomata by diffusion. This loss of water vapour is known as transpiration.