Term
| What are the layers of the insect integument? |
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Definition
| basement layer - epidermis (cell layer) - endocuticle - exocuticle - epicuticle |
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Term
| What is the basement membrane composed of? |
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Definition
| It is a mucopolysaccaride composed of Glucosamine and Glucuronic acid. Cathapsin-L protease degrades basement membrane |
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Term
| What types of cells are found in the epidermis |
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Definition
| Simple Columnar Cells • Oenocytes • Epithelial Tendon Cells • Sensory and Specialized Gland Cells |
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Term
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Definition
| encode for large protein that is involved in adhering the epidermis to the cuticle |
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Term
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Definition
| cement - wax - cuticulin layer - |
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Term
| What is the difference between chitin and cellulose |
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Definition
| chitin has N-acetyl-glucosamine units not glucose units |
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Term
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Definition
| formed from the degradation of chitin with KOH |
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Term
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Definition
| exocuticle and endocuticle |
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Term
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Definition
| endocuticle resilin and epicuticle. resilin is rubber-like protien with few cross-links. dityrosine and ter-tyrosine |
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Term
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Definition
| divides cuticle into separate plates. allows for the expansion of the body wall. No exocuticle |
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Term
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Definition
| invagination of integument into body for muscle and tendon attachment |
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Term
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Definition
| head capsule where muscles for mouth parts and eye and antennae attach |
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Term
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Definition
Trehalose (hydrolysis) to glucose → (phosphorylation) to glucose-6-phosphate → fructose-6-phosphate → (GFAT) → Glucosamine-6-phosphate → N-acetylglucosamine-6-phosphate → N-acetylglucosamine-1-phosphate → Uridine diphosphate N-acetylglucosamine
chitin sythase adds these monomers to form chitin |
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Term
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Definition
| Quinone tanning: N-acetyl Dopamine (NADA) is converted to Quinone which allow proteins to attach to the quinone molecule |
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Term
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Definition
| same pathway as scleritization but the Dopamine is converted tomelanin instead of N-acetyl Dopamine |
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Term
| Lipids function in integument |
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Definition
| prevent desiccation - absorb insecticides and prevent establishment of microorganisms. sex pheromones, caste recognition, thermoregulation, kairomones |
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Term
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Definition
| Hydrocarbons, Fatty acids, Waxes, sterol esters |
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Term
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Definition
| cell division of epidermis before apolysis. Inactive molting fluid in the space created by apolysis. cuticulin layer forms followed by inner epicuticle and activation of molting fluid (active digestion of old cuticle). Procuticle formation and ecdysis. Scleritization and procuticle and waxes continue to develop |
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