Crustacea - feeding and digestion in arthropods, Biology

Crustacea - Feeding and Digestion in Arthropods

Branchiopods (Anacostraca) give a good instance for filter feeding mechanism. The appendages are of foliaceous type (leaf-like) called phyllopodia and they can beat metachronally. The inner edge of these appendages bears a series of endites, the most basal endite being larger as compared to the others. The backwardly directed endites bear large setae that are as well backwardly directed. The outer edge of the limb has several lobes. The most distal of these lobes is the exopodite when the basal ones are epipodite and protopodite. The limbs carry out different functions. They are locomotory, feeding and because of their delicate structure can also function like respiratory organs. The beating of limbs produces currents in surrounding water and brings in the food particles. In between the limbs present on one side, there is an inter limb space. The food materials are trapped on to the setae of endites that act as the filtering elements of the food capturing mechanism. The filtered food materials are taken to the mouth.

Copepods such as Calanus resort to maxillary filter feeding. In these organisms feeding current is made by a swimming vortex. The maxillary setae act as a filter and collect the food when the water passes by them. The setae on maxillular endites and maxillipeds eliminate the food from the maxillary setae and pass it onto the mouth.

Posted Date: 2/4/2013 4:11:27 AM | Location : United States







Related Discussions:- Crustacea - feeding and digestion in arthropods, Assignment Help, Ask Question on Crustacea - feeding and digestion in arthropods, Get Answer, Expert's Help, Crustacea - feeding and digestion in arthropods Discussions

Write discussion on Crustacea - feeding and digestion in arthropods
Your posts are moderated
Related Questions
DISORDER S OF THE PANCREAS - (i ) Diabetes mellitus (Hypoinsulinism) The insulin-dependent diabetes mellitus (IDDM) is caused by a failure of the Beta-cells to produc

Q. On average what is the life duration of the red blood cells? Where are they destroyed? What is the destination of the heme groups after the destruction of hemoglobin molecules?

Q What are the three major groups into which mammals are divided? The three groups into which mammals are divided are: monotremes (or prototherian that is platypus), placental

Life cycle of Filarial worm Filariasis : It is popularly known as elephantiasis. It is caused by a nematode parasite, wuchereria bancrofti, and W.Malayi. Parasite : Wucher

Determine the term - Neuropsychology The neuropsychology of the various modalities and domains involves applications from the knowledge base concerning the domain or modality i

Explain the Steps of Exercise You have learnt the steps of exercises in Block 3, Unit 1 of theory block. Let us review the steps. In aerobic exercises one has to under go fo

What does it mean when a plasmid is cleaved with Hind III and Sca I? Does that mean that it opens up at those two locations and I have to insert whatever is complementary to it?

Determine the importance of Educational History- assessment  A complete school history includes information regarding a child's current grade placement, any grade repetitions o

Classification with its Justification Kingdom Animalia Animals, multi-cellular organisms with cells that lack a cell wall, many capable of movement or movement of some o

Q. Investigation of aortic regurgitation by Surgical Therapy? The recommendation for Aortic valve replacement is only for those patients with Severe AR. If patients with mild A