In order to study respiration in green plants we must block out the light, because although green plants respire all the time they only photosynthesize in the light. All parts of the plant respire, the leaves, the stem, the roots and even the flowers.
Plants, however, do not have lungs or a blood stream, so we cannot say that they breathe in the same way as animals.We also have to be careful when studying green plants because in the light the green parts of these plants carry out photosynthesis as well as respiration.Photosynthesis does the opposite of respiration.
Q: How does photosynthesis occur in plants that are ..
The top of the leaf will often have a thick waxy cuticle which prevents water sitting around/on the stomata as if water covers the stomata transpiration will not occur and then the plant will drown as if hydrophytes do not get rid of water they will not survive as they will absorb to much water and sink meaning all their leaves will be submerged and no sunlight will be absorbed causing the plant to have not energy to carry out photosynthesis.