What are the internal structure of a leaf?
What are the internal structure of a leaf?
The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis. The central leaf, or mesophyll, consists of soft-walled, unspecialized cells of the type known as parenchyma.
What are the internal structure of plants?
Plants have a root system, a stem or trunk, branches, leaves, and reproductive structures (sometimes flowers, sometimes cones or spores, and so on). Most plants are vascular, which means they have a system of tubules inside them that carry nutrients around the plant.
What is leaf in simple words?
A leaf is an above-ground plant organ and it is green. Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close. The leaves will grow back in spring.
How is the internal structure of a leaf adapted for photosynthesis?
The upper epidermis of the leaf is transparent, allowing light to enter the leaf. The palisade cells contain many chloroplasts which allow light to be converted into energy by the leaf. The leaf also has air spaces which allow better diffusion of carbon dioxide into the leaf.
What are some examples of internal structure?
Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heart.
Why are leaves called leaves?
Leaf comes from the Old English word ‘lēaf’, which is of Germanic origin and related to the Dutch ‘loof’ and German ‘Laub’.
What is an entire leaf?
The term entire refers to leaves that are neither toothed, lobed, or compound, i.e. simple with smooth margins.
What is internal structure in geography?
The Earth is made up of 3 main sections: the core, mantle and crust. The core. At the centre of the earth lies the core. This is split into two sections: the inner and outer core. The inner core is solid and is composed of iron and nickel.
