Voorbeelden van chitin

• Chitin, a white horny substance found in the exoskeleton of several invertebrate animals. 

• It would be soft but for the chitin, as the horny substance is called. 

• The whole outer shell of the insect is made of the horny chitin. 

• There is no chitin in the skin between the segments. 

• They are worked by powerful muscles, and are supported, like a fan, by ribs of chitin, which may be accompanied by air-tubes, blood-channels, and nerves. 

• The protein elements may be derived from reticulate granules and chitin from the glycogen reserves of the oocyte.

• Alvinellids make complex chitin tube colonies on the flanks of black smoker chimneys.

• Within marine chitin-containing organisms, the -type is abundant and chitosan can also be found.