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Like other insects, cockroaches breathe through a system of tubes called tracheae which are attached to openings called spiracles on all body segments. When the carbon dioxide level in the insect rises high enough, valves on the spiracles open and carbon dioxide diffuses out and oxygen diffuses in.
Stylised diagram of the last part of the insect's digestive tract showing malpighian tubule (orthopteran type)The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids and tardigrades.
An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...
The digestive system of earwigs is like all other insects, consisting of a fore-, mid-, and hindgut, but earwigs lack gastric caecae which are specialized for digestion in many species of insect. Long, slender (extratory) malpighian tubules can be found between the junction of the mid- and hind gut.
Within the digestive system of C. punctulatus are obligate and unique flagellates, commonly Hypermastigida, that can digest the cellulose in wood that the cockroach consumes as their primary diet. [ 5 ] [ 11 ] In addition to the unique flagellates, there is found bacteriocytes that are common in other cockroach species, making Cryptocercus the ...
Type I formation of a peritrophic matrix is thought to be the ancestral method, and is found in the majority of organisms that produce a peritrophic matrix. In type I formation, the peritrophic matrix is secreted by the entire midgut, and is formed simply by delamination from the surface of the midgut epithelium. [3]
Blattodea is an order of insects that contains cockroaches and termites. [3] Formerly, termites were considered a separate order, Isoptera, but genetic and molecular evidence suggests they evolved from within the cockroach lineage, cladistically making them cockroaches as well. [4]
Most molluscs have a complete digestive system with a separate mouth and anus. The mouth leads into a short esophagus which leads to a stomach. Associated with the stomach are one or more digestive glands or digestive caeca. Digestive enzymes are secreted into the lumen of these glands. Additional extracellular digestion takes place in the stomach.