do crustaceans have a cell wall?

Answer 1

they are made of chitin one of the toghest matirials in the world not cell walls

Answer 2

As everyone else has said, being animals, they don't have cell walls but merely membranes. What I think you are wondering is how they can have such a hard exterior, then? The carapace or exoskeleton is composed mainly of a reinforced natural polymer called chitin. This is found in other arthropods as well, such as insects. Chitin alone is a leathery and clear polysaccharide (multiple sugar molecules) and is somewhat similar to cellulose, which is what forms the cell wall you mentioned. The main chemical difference between chitin and cellulose is a nitrogen-containing "appendage" attached to the polysaccharide. The chitin of a crustacean is tougher because it is reinforced with a salt called calcium carbonate.

Answer 3

Crustaceans are organisms comprised of millions and millions of cells. Since these are animal cells they do not have a cell wall.

Answer 4

Only plants have cell walls. Crustaceans are not plants, but animals such as crabs. Thus, crustaceans do not have cell walls.

Answer 5

Crustaceans do not have a cell wall, they are animals, not plants or bacteria. But they do have an exoskeleton. They not chordates.

Answer 6

No they dont. Plants have cell walls so they can be rigid like trees and such. Humans, other animals, bacteria and other things have membranes instead of walls.