The answer is no, because, on the top of a leaf there is the, cuticle, then the upper epidermis cells underneath, which you can see these, because you can see a sort of jigzaw pattern on the top of the leaf.
but on the bottom of a leaf there are tiny, guard cells, a guard cell is a cell that lets in carbon dioxide to the leaf, but only on the bottom of the leaf.
if you have ever wondered why a leaf is greener on the top, than the bottom of a leaf, is because, sunlight can easily reach the top of a leaf, this is called photosynthesis, but on the bottom of a leaf, it only gets sunlight from refections from the ground, because the bottom of the leaf does not have any visible contact with the sun.
yes
Lower epidermal cells.
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2
The Veins
This layer with column like cells in the leaf is palisade layer. It is clearly seen in dorsiventral leaves.
Lower epidermal cells.
The outermost layer of a root is called the epidermis. It is a single layer of cells that protects and covers the root. In stems and leaves, the outermost layer is also called the epidermis, and it serves a similar protective function.
On a leaf the palisade cells are located within the mesophyll layer. It is the layer that is closest to the upper epidermis of a leaf.
There is a waxy layer called the cuticle that reduces evaporation from the leaf. It is produced by the epidermal cells of the leaf.
The exchange of oxygen occurs in the spongy layer. When light hits the spongy layet it will open which releases the oxygen and lets carbon dioxide in.
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The cuticle
2
The Veins
Do you mean a cell Wall?
This layer with column like cells in the leaf is palisade layer. It is clearly seen in dorsiventral leaves.
The upper skin of the leaf has a layer of wax on it, called a cuticle. This makes the leaf waterproof. The upper skin of the leaf has a layer of wax on it, called a cuticle. This makes the leaf waterproof.