The exoskeleton of arthropoda is made of a tough protein called chitin, a long-chain polymer comparable to cellulose. It fills the same role as the protein keratin in other animals (found in hair, nails, hooves, claws, beaks, etc). Some arthropods, like crustaceans, further harden their exoskeleton by biomineralization with calcium carbonate. Because it is inflexible, the organism has to periodically shed their entire exoskeleton in order to grow.
Chitin, also a major component of our hair and nails!
Carapace
No, it is a polysaccharide that makes up the exoskeletons of arthropods.
Chitin, N-acetylgucosamine, makes up the exoskeletons of crustaceans.
As the arthropod grows up, the exoskeleton sheds in order for the arthropod to grow inside of it.
Lobsters are crustaceans, and chitin is the hard polysaccharide substance that makes up the outer shell (exoskeleton) of crustaceans. Chitin also makes up the exoskeletons of other arthropods (insects, etc.). It helps to strengthen the cell walls of fungi and the shells of mollusks as well.
Starfish actually have ENDOskeletons, not exoskeletons. They are made up of calcium carbonate compounds called ossicles.
Arthropod means "jointed legs," because arthropods are covered with a hard skin ("crab shells" are the hard skin of crabs) and they move by flexing joints along their hard skin. When they grow, they have to grow inside their hard skin. But, if the skin is too tight, there's no space! By taking in air or water when their shell is still soft, arthropods can "pump up" and make a nice roomy shell to grow in. When they fill that shell up, they crawl out of it, and then pump up the soft skin underneath. The pumped up soft skin hardens into hard skin, and the arthropod is ready to keep growing.
no insects have bones or skeletons. They have exoskeletons made up of chitin, a type of polysaccharide, or sugar. Its similar to purpose/structure as cellulose, the stuff that makes up cell walls and makes celery crunchy
Cell walls of fungi are similar to exoskeletons of insects because they are both made up of chitin. Chitin is made up of complex carbohydrates.
I believe that exoskeletons are made of the same material as our own fingernails and hair, just compacted together.
Chitin, a polysaccharide made of N-acetylglucosamine molecules. It makes up the exoskeletons of all arthropods, including insects; arachnids, such as Spiders and ticks; and crustaceans, such as crabs, lobsters, crayfish, and shrimp.
A squirrel is not an arthropod but a rodent. This is a mammal and arthropods are mostly made up of different insect species.
The kingdom fungi has organisms with cell walls made of chitin (the substance that makes up insect exoskeletons).