Multiple choice

Respiratory pigments are present in the blood to help in the transport of gases like carbon dioxide and oxygen. Which pigment is present in a frog?

  1. Haemoglobin

  2. Cytochrome

  3. Hemocyanin

  4. None of these

  5. -
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A Correct answer
Explanation

Haemoglobin is the respiratory pigment which occurs in the blood of a frog and other vertebrates. It can combine with oxygen and carbon dioxide and helps in their transport inside the body.

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