Invertebrate Zoology /

Arthropods are covered with a tough or resistant exoskeleton, which may be mineralized or constructed of a tough polymer such as chitin. This external skeleton is moulted as the organism grows. A typical arthropod exoskeleton is a multi-layered structure with four functional regions: epicuticle, pro...

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Main Author: Weatherly, Nicolette, author 648791
Format: software, multimedia
Language:eng
Published: Delhi, India : Research World, 2012
Subjects:
Online Access:http://repository.library.utm.my/id/eprint/3944
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author Weatherly, Nicolette, author 648791
author_facet Weatherly, Nicolette, author 648791
author_sort Weatherly, Nicolette, author 648791
collection OCEAN
description Arthropods are covered with a tough or resistant exoskeleton, which may be mineralized or constructed of a tough polymer such as chitin. This external skeleton is moulted as the organism grows. A typical arthropod exoskeleton is a multi-layered structure with four functional regions: epicuticle, procuticle, epidermis and basement membrane. Of these, the epicuticle is a multi-layered external barrier that, especially in terrestrial arthropods, acts as a barrier against desiccation. The strength of the exoskeleton is provided by the underlying procuticle, which is in turn secreted by the epidermis. Arthropod cuticle is a biological composite material, consisting of two main portions: fibrous chains of alpha-chitin within a matrix of silk-like and globular proteins, of which the most well-known is the rubbery protein called resilin. The relative abundance of these two main components varies from approximately 50/50 to 80/20 chitin protein, with softer parts of the exoskeleton having a higher proportion of chitin. Although the cuticle is relatively soft when first secreted, it soon hardens in a poorly-understood process that involves dehydration and/or tanning mediated by hydrophobic chemicals called phenolics. Different types of interaction between the proteins and chitin leads to varying mechanical properties of the exoskeleton.
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institution Universiti Teknologi Malaysia - OCEAN
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spelling KOHA-OAI-TEST:5971342023-11-22T00:22:06ZInvertebrate Zoology / Weatherly, Nicolette, author 648791 software, multimedia Electronic books 631902 Delhi, India : Research World,2012©2012engArthropods are covered with a tough or resistant exoskeleton, which may be mineralized or constructed of a tough polymer such as chitin. This external skeleton is moulted as the organism grows. A typical arthropod exoskeleton is a multi-layered structure with four functional regions: epicuticle, procuticle, epidermis and basement membrane. Of these, the epicuticle is a multi-layered external barrier that, especially in terrestrial arthropods, acts as a barrier against desiccation. The strength of the exoskeleton is provided by the underlying procuticle, which is in turn secreted by the epidermis. Arthropod cuticle is a biological composite material, consisting of two main portions: fibrous chains of alpha-chitin within a matrix of silk-like and globular proteins, of which the most well-known is the rubbery protein called resilin. The relative abundance of these two main components varies from approximately 50/50 to 80/20 chitin protein, with softer parts of the exoskeleton having a higher proportion of chitin. Although the cuticle is relatively soft when first secreted, it soon hardens in a poorly-understood process that involves dehydration and/or tanning mediated by hydrophobic chemicals called phenolics. Different types of interaction between the proteins and chitin leads to varying mechanical properties of the exoskeleton.Chapter 1. Arthropod Exoskeleton -- Chapter 2. Arthropod Eye -- Chapter 3. Insect Flight -- Chapter 4. Evolution of Insects -- Chapter 5. Mollusc Shell -- Chapter 6. Water Vascular System -- Chapter 7. Spider Anatomy -- Chapter 8. Evolution of Spiders -- Chapter 9. Different Classes of Sponges -- Chapter 10. Classification and Diversity of Annelids -- Chapter 11. Major Sub - groups of Platyhelminthes.Arthropods are covered with a tough or resistant exoskeleton, which may be mineralized or constructed of a tough polymer such as chitin. This external skeleton is moulted as the organism grows. A typical arthropod exoskeleton is a multi-layered structure with four functional regions: epicuticle, procuticle, epidermis and basement membrane. Of these, the epicuticle is a multi-layered external barrier that, especially in terrestrial arthropods, acts as a barrier against desiccation. The strength of the exoskeleton is provided by the underlying procuticle, which is in turn secreted by the epidermis. Arthropod cuticle is a biological composite material, consisting of two main portions: fibrous chains of alpha-chitin within a matrix of silk-like and globular proteins, of which the most well-known is the rubbery protein called resilin. The relative abundance of these two main components varies from approximately 50/50 to 80/20 chitin protein, with softer parts of the exoskeleton having a higher proportion of chitin. Although the cuticle is relatively soft when first secreted, it soon hardens in a poorly-understood process that involves dehydration and/or tanning mediated by hydrophobic chemicals called phenolics. Different types of interaction between the proteins and chitin leads to varying mechanical properties of the exoskeleton.InvertebratesZoologyhttp://repository.library.utm.my/id/eprint/3944URN:ISBN:9788132331520Remote access restricted to users with a valid UTM ID via VPN.
spellingShingle Invertebrates
Zoology
Weatherly, Nicolette, author 648791
Invertebrate Zoology /
title Invertebrate Zoology /
title_full Invertebrate Zoology /
title_fullStr Invertebrate Zoology /
title_full_unstemmed Invertebrate Zoology /
title_short Invertebrate Zoology /
title_sort invertebrate zoology
topic Invertebrates
Zoology
url http://repository.library.utm.my/id/eprint/3944
work_keys_str_mv AT weatherlynicoletteauthor648791 invertebratezoology