Search results
Results from the WOW.Com Content Network
While the term lenticel is usually associated with the breakage of periderm tissue that is associated with gas exchange, it also refers to the lightly colored spots found on apples (a type of pome fruit). "Lenticel" seems to be the most appropriate term to describe both structures mentioned in light of their similar function in gas exchange.
They help to regulate the rate of transpiration by opening and closing the stomata. Light is the main trigger for the opening or closing. [citation needed] Each guard cell has a relatively thick and thinner cuticle [clarification needed] on the pore-side and a thin one opposite it. As water enters the cell, the thin side bulges outward like a ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
A paleontologist hailed the discovery as "truly an unusual find," adding it helped explain the relationships in the prehistoric food chain.
A sicko from New Jersey allegedly took part in a neo-Nazi child-porn ring whose members groomed children online and extorted them to send self-produced, sexually-explicit videos, federal ...
A South Carolina death row inmate was executed on Friday, marking the third time in four months the state has carried out the death penalty.
Nectar disk – when the floral disk contains nectar secreting glands; often modified as its main function in some flowers. Pedicel – the stem or stalk that holds a single flower in an inflorescence. Peduncle – the part of a stem that bears the entire inflorescence, normally having no leaves, or the leaves having been reduced to bracts.
This tissue system is present between the dermal tissue and forms the main bulk of the plant body. Parenchyma cells have thin primary walls and usually remain alive after they become mature. Parenchyma forms the "filler" tissue in the soft parts of plants, and is usually present in cortex , pericycle , pith , and medullary rays in primary stem ...