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Questions and Answers
Which of the following is a function of the cuticle in insects?
Which of the following is a function of the cuticle in insects?
- Sensation of touch
- Regulation of body temperature
- Respiration through gas exchange
- Protection against predators (correct)
What is the main component of the cuticle in insects?
What is the main component of the cuticle in insects?
- Elastin
- Keratin
- Chitin (correct)
- Collagen
How does the cuticle in insects grow as the insect grows?
How does the cuticle in insects grow as the insect grows?
- By absorbing nutrients from the environment
- By stretching and expanding the existing cuticle
- By secreting additional layers of cuticle
- By shedding and replacing the old cuticle (correct)
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Study Notes
Cuticle in Insects
- The cuticle in insects provides a barrier against water loss and physical damage.
- The main component of the cuticle in insects is chitin, a polysaccharide (complex carbohydrate).
- As the insect grows, the cuticle is periodically shed and replaced through a process called ecdysis, allowing the insect to increase in size.
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