Plant cell parenchyma cells, that covers the external surfaces of leaves, stems and roots. Several cell types may be present in the epidermis. Notable among these are the stomatal guard cells that control the rate of gas exchange between the plant and the atmosphere, glandular and clothing hairs or trichomes, and the root hairs of primary roots. In the shoot epidermis of most plants, only the guard cells have chloroplasts. Chloroplasts contain the green pigment chlorophyll which is needed for photosynthesis. The epidermal cells of aerial organs arise from the superficial layer of cells known as the "tunica" (L1 and L2 layers)
Hammersmith Is Out Hammersmith Is Out Hammersmith Is Out is a 1972 American comedy-drama film based on the legend of Faust. It is directed by Peter Ustinov, who starred in the film alongside Elizabeth Taylor, Richard Burton, Beau Bridges, Leon Ames, and George Raft. Billy Breedlove (Beau Bridges) is an orderly at a Texas psychiatric hospital. He simultaneously falls under the spell of two people: a blonde waitress at a local diner named Jimmie Jean Jackson (Elizabeth Taylor) and an allegedly sociopathic hospital patient named Hammersmith (Richard Burton), who is restrained in a straitjacket within a locked cell. Hammersmith promises Billy a new