10 Questions
Functions of Salivary Glands include
moistening food, lubricating mouthparts, containing digestive enzymes, and non-digestive functions
Foregut consists of the
mouth, pharynx, oesophagus, crop, proventriculus
The Proventriculus is sometimes armed with
teeth for grinding
The midgut consists of
ventriculus, where most digestion is carried out, and gastric caeca
The Insect Digestive System Developmentally cuticle consists of
foregut, midgut, hindgut
Malpighian tubules are the main ______ organs of the insect body
excretory
The excretory system maintains a constant internal environment by regulating water and ______ balance
ionic
The number of Malpighian tubules varies and they enter the alimentary canal at the junction of the mid and hind ______
guts
The choice of nitrogenous excretory product is dependent upon the need to conserve ______
water
The selection of a given product as nitrogen excretory molecule results from a tradeoff between the toxicity of the compound and the ______
energy
Study Notes
Insect Digestive System
- Foregut consists of the proventriculus, which may be armed with spines or teeth.
- Midgut consists of the main region for enzymatic digestion and nutrient absorption.
Excretory System
- Malpighian tubules are the main excretory organs of the insect body.
- The number of Malpighian tubules varies, and they enter the alimentary canal at the junction of the midgut and hindgut.
- The excretory system maintains a constant internal environment by regulating water and ion balance.
- The choice of nitrogenous excretory product depends on the need to conserve water.
- The selection of a given product as a nitrogen excretory molecule results from a tradeoff between the toxicity of the compound and the energy required for its synthesis.
Test your knowledge of insect digestive systems, including the development of the digestive system and the various components such as foregut, midgut, and hindgut. Identify the different parts of the insect digestive system and their functions.
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