Water cannot reach inside of a leaf it hydrates it.
by photosynthesis
It depends on the plant. If you're talking about, say, a tree, the water is carried up from the soil. That's why you water a houseplant. Carbon dioxide enters through holes in the bottom of the leaf called stomata.
stomata
Water enters a leaf through the roots and travels through the stem to reach the leaves. Carbon dioxide enters a leaf through tiny pores called stomata on the underside of the leaf. Once inside the leaf, both water and carbon dioxide are used in the process of photosynthesis to produce glucose and oxygen.
It depends on how much salt is in the water. If no salt, the leaf will swell. If it is the same amount in the water as in the leaf, then nothing will happen. If more is outside than inside the leaf, it will shrivel.
The leaf was rinsed in water to rehydrate it. Iodine solution is an aqueous solution of iodine/potassium iodine - potassium tri-iodide; water is needed inside the leaf to enable penetration by diffusion.
The cellular material inside a leaf is arranged with various spaces and gaps between the cells. These spaces allow for the movement of gases, such as carbon dioxide and oxygen, as well as water and nutrients throughout the leaf. This arrangement is crucial for photosynthesis and overall leaf function.
The purpose of the waxy outer layer of a leaf, which is called a cuticle, is to keep the leaf from losing water inside the leaf. Plants that live in the water do not have this problem, so they have no cuticle.
A leaf has a flat, thin structure with an outer epidermis layer that protects the leaf. Inside the leaf, there are layers of cells known as mesophyll, which contain chloroplasts for photosynthesis. The veins of the leaf transport water and nutrients throughout the leaf.
its from sunlight which converts the menirals in the water (H20) to energy
Allowing water to reach and nourish the leaves themselves is a natural act just as photosynthesis. The water needed is absorbed through the stems and smaller looking "veins" running through the back of the leaf.
Carbon dioxide enters the leaf through small openings called stomata. Inside the leaf, carbon dioxide is used in photosynthesis to produce oxygen and glucose. Oxygen and excess water exit the leaf through the stomata as byproducts of photosynthesis and transpiration, respectively.