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Composition of the hemolymph of the tarantulaEurypelma californicum

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Summary

  1. 1.

    Cell-free hemolymph of the tarantulaEurypelma californicum has been analysed for its inorganic and organic constituents (Tables 1, 2, and 3).

  2. 2.

    Free carbohydrates are 0.15 g/l, the main blood sugar being glucose. Protein-bound carbohydrates are 0.58 g/l. Protein concentration is 56.9 g/l.

  3. 3.

    The concentration of free amino acids is 0.52 mmol/l (Table 2), proline being the dominant free amino acid in the hemolymph.

  4. 4.

    The lipid content is 0.41 g/l (Table 3), the main fatty acids are palmitic and stearic acids.

  5. 5.

    The blood pH value was determined at 7.81. The osmolarity of 477 mosmol/l is fully accounted for by the concentrations of inorganic ions and other low molecular weight compounds, suggesting that essentially all blood components have been determined.

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Schartau, W., Leidescher, T. Composition of the hemolymph of the tarantulaEurypelma californicum . J Comp Physiol B 152, 73–77 (1983). https://doi.org/10.1007/BF00689730

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Keywords

  • Blood Sugar
  • Lipid
  • Sugar
  • Molecular Weight
  • Carbohydrate