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Questions and Answers
What is the function of the insect integument?
What is the function of the insect integument?
- Energy production through photosynthesis
- Facilitation of digestion
- Regulation of body temperature
- Protection for internal organs (correct)
Which layer of the cuticle is outermost and lacks chitin?
Which layer of the cuticle is outermost and lacks chitin?
- Wax layer
- Procuticle
- Epicuticle (correct)
- Cement layer
What does the epicuticle consist of?
What does the epicuticle consist of?
- Lipid and protein, but no chitin (correct)
- Only chitin
- Lipid, chitin, and protein
- Chitin and protein, but no lipid
Which layer of the cuticle contains chitin?
Which layer of the cuticle contains chitin?
What is the main function of the basement membrane in the insect integument?
What is the main function of the basement membrane in the insect integument?
Flashcards
Insect Integument Function
Insect Integument Function
Provides protection for internal organs in insects.
Epicuticle
Epicuticle
The outermost layer of the cuticle, characterized by the absence of chitin.
Epicuticle Composition
Epicuticle Composition
Composed of lipid and protein, but does not contain any chitin.
Procuticle
Procuticle
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Basement Membrane Function
Basement Membrane Function
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Study Notes
Insect Integument
- The insect integument provides protection, support, and maintains internal environment.
- It is composed of three main layers: epicuticle, exocuticle, and endocuticle.
Cuticle Layers
- The epicuticle is the outermost layer, lacking chitin.
- It consists of a thin, impermeable layer of lipids and waxes.
Chitin-containing Layer
- The procuticle (also known as exocuticle and endocuticle) is the layer that contains chitin.
- Chitin is a polysaccharide that provides strength and flexibility to the cuticle.
Basement Membrane
- The basement membrane is a thin, acellular layer that separates the epidermis from the hemocoel.
- Its main function is to provide a substrate for muscle attachment and maintain the position of the epidermis.
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