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Question

The primary oxygen carrier or respiratory pigment in blood of frog and other vertebrates is

A
Myoglobin
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B
Cytochorome
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C
Haemoglobin
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D
Haemocyanin
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Solution

The correct option is B Haemoglobin
  • Myoglobin is a heme protein, which binds to and acts as a store for oxygen in the muscle cells of vertebrates.
  • Cytochromes are membrane-bound heme-proteins and are primarily responsible for the generation of ATP via electron transport chain. The cytochrome P450 oxidase family of cytochromes are primarily involved in steroidogenesis and detoxification.
  • Haemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates.
  • Hemocyanin is blue copper-containing respiratory pigment in crustaceans and molluscs that have a similar function as haemoglobin.
So, the correct answer is option C.

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