--%>
Assignment Help - homework help

Mechanical digestion

What do you mean by mechanical digestion? In arthropods, molluscs, earthworms, vertebrates and birds, which organ participates respectively in this type of digestion?

E

Expert

Verified

Mechanical digestion refers to fragmentation of the food aided through the specialized physical structures, like teeth, previous to extracellular digestion. Mechanical fragmentation of the food helps in various digestive enzymatic reactions since it gives larger area for the contact between the enzymes and their substrates. In some molluscs, mechanical fragmentation is done through the radula (teeth-like structure). Some arthropods e.g.  Dragonflies, lobsters and, have mouthparts which do the mechanical digestion of food. In earthworms and the birds, mechanical digestion is done by an internal muscular organ. In manipulate vertebrates there exist mandibles and chewing muscles in order to triturate food previous to the chemical digestion.

   Related Questions in Biology

  • Q : What is Business Development Business

    Business Development: It is a wide term applied to the procedure of strengthening ties with existing clients and also cultivating customers in other sectors of consumer market. The traditional barriers among sales, customer care, marketing, operations

    		•
  • Q : Characterization of arthropod

    Name the three main arthropod groups characterized according to the presence of antennae? Answer: The Crustaceans contain two pairs of antennae; insects have one pai

    		•
  • Q : Name of biological molecule which have

    Write down the name of biological molecule which contains the genetic information and which is transmitted hereditarily and controls cellular functioning?

    		•
  • Q : Equity Theory of Work Motivation -

    This theory was formulated by J.S. Adams. It is based on the assumption that members of an organization experience strong expectations of justice, balance and fairness in treatment by the organization. When a person feels that he is being treated unfairly by the organization, these feelings can h

    		•
  • Q : Analysis and work redesign strategies

    Explain the Analysis and work redesign strategies used to reconstruct the market/geographic groups ?

    		•
  • Q : Concentration gradient of the moved

    How the intensity of simple diffusion is differ in relation to the concentration gradient of the moved substance?

    		•
  • Q : Describe the digestive functions of the

    Describe the digestive functions of the liver?

    		•
  • Q : Throughput Factor-Group

    This refer to all aspects of the group processes and dynamics that result in task performance and member satisfaction. Some of these are the norms developed on groups, group cohesiveness, decision making processes used by the group and the extent of task and maintenance activities performed by th

    		•
  • Q : Cells of nervous system State the major

    State the major cells of nervous system?

    		•
  • Q : Other Factors - Personality

    I. Temperament: Temperament and other non-intellectual personality traits are distributed according to the normal distribution. Temperament  is the degree to which one responds emotionally. II. Interest: The individual normally has many interests in

    		•