What is the upper epidermis?

1.The outermost layer of the leaf is the epidermis. It consists of the upper and lower epidermis, which are present on either side of the leaf. Botanists call the upper side the adaxial surface (or adaxis) and the lower side the abaxial surface (or abaxis). The epidermis aids in the regulation of gas exchange. read more

Upper epidermis. This is a single layer of cells containing few or no chloroplasts. The cells are quite transparent and permit most of the light that strikes them to pass through to the underlying cells. read more

Define Upper Epidermis. Upper Epidermis synonyms, Upper Epidermis pronunciation, Upper Epidermis translation, English dictionary definition of Upper Epidermis. n. 1. The outer, protective, nonvascular layer of the skin of vertebrates, covering the dermis. 2. An integument or outer layer of various invertebrates. read more

The upper epidermis, or stratum corneum, functions to protect the lower layers of skin and the tissues beneath from both physical and chemical damage. read more