Stomata that can help plants to exchange gases.
The leaves of Betula populifolia are smooth on the lower surface.
smooth and not peeling
In monocot leaves stomatal distribution is almost evenly on the upper and lower surface of the leaf. In herbacious dicot stomata is distributed more on the lower surface than the upper surface. Lastly in woody dicot there is not stomatal distribution on upper surface but great distribution on lower surface of leaves.
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From what I know about plants, the leaves have stoma in the bottom layer. Stoma are holes, through which excess water moves out of during transpiration The weather, humidity, water potential gradients and temperature all affect transpiration rates.
The glossy and green upper surface of leaves helps to reflect excess sunlight and prevent dehydration by reducing water loss through evaporation. The lower surface may be duller to maximize light absorption for photosynthesis and has pores called stomata that allow for gas exchange and water vapor release.
Yes, birch tree leaves typically have small, fine hairs on their lower surfaces. These hairs may help the leaves retain moisture and protect against pests.
Stomata in lotus plant is on the upper side of the leaves . BY:Alvir Tuazon
Leaves float on top of ponds because they have a lower density than water, which allows them to be buoyant. The air pockets in leaves also contribute to their ability to float. This allows leaves to stay on the surface of the water rather than sinking.
Most stomata are located on the lower surface of leaves to minimize water loss through transpiration. This positioning reduces direct exposure to sunlight and wind, which can increase evaporation rates. Additionally, the lower surface is often more shaded and cooler, further helping to conserve water. This adaptation allows plants to regulate gas exchange while maintaining moisture levels, essential for their survival.
Dicot leaves are generally dorsiventral, having palisade cells on the upper surface of the leaf which receives light, and lower surface has spongy parenchyma for gaseous exchange with several stomatal pores. The palisade cells are columnar with large number of chloroplasts to trap maximum light.
The lower surface is the oral side. The upper surface is referred to as the aboral side.