Question

Respiratory pigment of arthropods is

• A. Haemoglobin
• B. Cytochrome
• C. Haemocyanin
• D. None of the above

Answer 1

The correct option is C Haemocyanin

Hemocyanins are copper-containing respiratory pigments which are found in many mollusks and arthropods (many crustaceans, some arachnids, and the horseshoe crab. Hemocyanins are colorless in the reduced, or deoxygenated, state and blue when exposed to air or to oxygen dissolved in the blood. They serve as respiratory pigments.

Therefore, the correct answer is option C.