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Silk is a biological fibre produced by caterpillars of certains moths at the end of their larval phase prior to changing into and adult. Silks are produced by other insects indeed other arthropods such as Spiders . However, the most commonly traded silk is produced by silk moth the Bombyx mori. The silkworm has a pair of laterally located silk glands opening by a common orifice or spinneret on the underlip of larva. For about 35 days following birth, the larva jos keeps consuming mulberry leaves ands becomes 10000 times heavier than when hatched. At that point it stops feeding and over the next 3 days ejects from both glands through the spinneret a continuous and reelable thread between 0.7 km and 1.1 km and even 1.6 km round and round its body to produce a cocoon . The thread from the cocoon unravelled and converted into the much sought after yam.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoFibroin protein is secreted by silkworms for making cocoons.
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Where does the material silk fabric come from?
Silk fabric is woven from stands of silk secreted by the silkworm.
What is the biological name of silkworm?
The biological name of the silkworm is Bombyx mori.
What is the name of the Assam silkworm?
eri
What substances are secreted by a rough endoplasmic reticulum?
Only Protein
Is insulin a fungi bacteria or virus?
Insulin is a protein secreted in pancreas.
What small protein secreted by virus containing cells?
interferon
What protein secreted by fat cells that helps in the regulation of appetite?
leptin
A tough waterproofing protein is?
Keratin is a tough, waterproofing protein. Keratin is secreted by the cells of the epidermis (the outermost layer of skin).
Why are protein digestive enzymes produced and released in an inactive form?
In the case of protein digesting enzymes, known as endopeptidases, such as those secreted in the stomach (pespin), it is obvious. If they were secreted active they would digest the glands which secrete the enzymes themselves (gastric glands). Instead they must be secreted in an inactive form, which once in the stomach and exposed to HCl acid and other pepsin enzymes the pepsinogen activates and begins digesting protein.
What is the role of the liver in protein metabolism?
The liver produces the proteins that are secreted into the blood. The liver is responsible for protein metabolism, degradation and synthesis
What is the scientific name of the silkworm?
Bombyx mori
What is the process by which newly-made proteins are secreted out of an animal cell?
Which is the process by which newly-made proteins are secreted out of an animal cell?
