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Enhancement of Food Production — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYEnhancement of Food Production3 Marks
Question
Which process is involved in silk production from cocoon?
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Answer

  1. The silk is a continuous filament comprising fibroin protein, secreted from salivary glands of silkworm and a gum ailed sericin.
  2. To remove the sericin, which cements,the filaments, cocoons are placed in hot water.
  3. It frees the silk filaments and readies them for reeling. This is known as the degumming process.
  4. The sillworm pupa gets killed in hot water.
  5. Single filaments are combined to form thread.
  6. The threads are plied to form yarn.
  7. After drying, the raw silk is packed according to quality.

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